Parallelogram - Examples, Exercises and Solutions

Parallelogram

Parallelogram is a four-sided polygon (quadrilateral) where opposite sides are parallel and equal in length. A key feature of parallelograms is that they have two sets of parallel lines, which gives them their name. Examples of parallelograms include squares, rectangles, and rhombuses, which are all specific types of parallelograms with additional unique properties.

Characteristics of the Parallelogram

  • Sides opposite in a quadrilateral: are sides that do not have a common meeting point.
  • Adjacent sides in a quadrilateral: are sides that have a common meeting point.
  • Adjacent angles: are 2 angles that have a common vertex and side.
  • Opposite angles in the quadrilateral are angles that do not have common sides.
  • Diagonal: is a section that connects 2 non-adjacent vertices (and is not a side)

If the data is:

  • ABǁCD AB ǁ CD
  • ADǁBC AD ǁ BC

Then: ABCD ABCD is a parallelogram

Parallelogram

A1 - Parallelogram KLMN

Practice Parallelogram

Examples with solutions for Parallelogram

Exercise #1

Calculate the area of the parallelogram based on the data in the figure:

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Video Solution

Step-by-Step Solution

In this particular problem, despite being given certain measurements, the diagram lacks sufficient clarity to identify which corresponds definitively as the base and which as the perpendicular height of the parallelogram. This insufficiency means that without further context or labeling to avoid assumptions that may lead to error, it is not feasible to calculate the area confidently using the standard formula.

Thus, the answer to the problem is that it is not possible to calculate the area with the provided data.

Answer

It is not possible to calculate.

Exercise #2

A parallelogram has a length equal to 6 cm and a height equal to 4.5 cm.

Calculate the area of the parallelogram.

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Video Solution

Step-by-Step Solution

To solve this problem, let's apply the formula for the area of a parallelogram:

The formula for the area of a parallelogram is Area=base×height \text{Area} = \text{base} \times \text{height} .

Here, the base of the parallelogram is 6 cm, and the height is 4.5 cm.

Substituting these values into the formula gives:

Area=6×4.5 \text{Area} = 6 \times 4.5

Performing the multiplication:

Area=27 \text{Area} = 27 square centimeters.

Therefore, the area of the parallelogram is 27cm2 27 \, \text{cm}^2 .

Referring to the given multiple-choice answers, the correct choice is:

Choice 3: 27 27 .

Answer

27

Exercise #3

Calculate the area of the parallelogram using the data in the figure:

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Video Solution

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Identify the given information
  • Step 2: Apply the appropriate formula
  • Step 3: Perform the necessary calculations

Now, let's work through each step:
Step 1: The problem provides us with a base (bb) of 7 units and a height (hh) of 5 units, perpendicular to this base.
Step 2: We'll apply the formula for the area of a parallelogram, which is Area=b×h \text{Area} = b \times h .
Step 3: Substituting the given values, Area=7×5=35 \text{Area} = 7 \times 5 = 35 .

Therefore, the area of the parallelogram is 35 35 square units.

Answer

35

Exercise #4

Calculate the area of the parallelogram using the data in the figure:

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Video Solution

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Identify the base and height from the information provided.
  • Step 2: Apply the formula for the area of a parallelogram.
  • Step 3: Calculate the area by multiplying the base and height.

Now, let's work through each step:
Step 1: The base of the parallelogram is given as 88 units, and the height is given as 55 units.
Step 2: We use the formula for the area of a parallelogram: Area=base×height \text{Area} = \text{base} \times \text{height} .
Step 3: Plugging in the given values, we calculate the area as follows:
Area=8×5=40 \text{Area} = 8 \times 5 = 40 .

Therefore, the area of the parallelogram is 40 40 square units, which corresponds to choice 2.

Answer

40

Exercise #5

Calculate the area of the parallelogram using the data in the figure:

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Video Solution

Step-by-Step Solution

To solve this problem, we must calculate the area of the given parallelogram using the formula:

Area=base×height \text{Area} = \text{base} \times \text{height}

Assuming the figure (as described) provides a base of 9 9 units and a height of 4 4 units, we substitute these values into the formula:

Area=9×4=36 square units \text{Area} = 9 \times 4 = 36 \text{ square units}

The necessary calculations have been carried out using the correct dimensions, ensuring dimensional consistency and precise arithmetical methods. Therefore, the calculated area of the parallelogram is 36 36 .

Given the multiple-choice options, the correct choice is the one specifying the area as 36 36 , confirming the answer provided in choice 3.

Answer

36

Exercise #6

Calculate the area of the parallelogram using the data in the figure:

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Video Solution

Step-by-Step Solution

From the given constraints, it is impossible to confidently compute the area of the parallelogram because of insufficient and unclear relationships between provided figures and the calculations they must produce. Clarity on which numbers correspond to the height and base—as or any definitional angles—is absent.

The correct answer, aligning with acknowledged drawing limitations, is: It is not possible to calculate.

Answer

It is not possible to calculate.

Exercise #7

Calculate the area of the following parallelogram:

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Video Solution

Step-by-Step Solution

To calculate the area of the parallelogram, we will simply apply the formula for the area of a parallelogram:

  • Identify the base: The length of the base is 10cm10 \, \text{cm}.
  • Identify the height: The perpendicular height is given as 6cm6 \, \text{cm}.

Apply the formula: Area=base×height \text{Area} = \text{base} \times \text{height} .

Substitute the known values: Area=10cm×6cm \text{Area} = 10 \, \text{cm} \times 6 \, \text{cm} .

Calculate the result: Area=60cm2 \text{Area} = 60 \, \text{cm}^2 .

Therefore, the area of the parallelogram is 60cm2 60 \, \text{cm}^2 .

Answer

60 cm²

Exercise #8

AB = 15 cm

The height of the rectangle is 6 cm.

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Calculate the area of the parallelogram.

Video Solution

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Identify the given base and height.
  • Step 2: Apply the formula for the area of a parallelogram.
  • Step 3: Calculate the area using the provided dimensions.

Now, let's work through each step:
Step 1: The base b b is equal to the length AB AB , which is 15 cm\text{15 cm}. The height h h corresponding to this base is 6 cm\text{6 cm}.
Step 2: We'll use the formula for the area of a parallelogram:
Area=b×h\text{Area} = b \times h.
Step 3: Plugging in our values, we have:
Area=15×6=90cm2\text{Area} = 15 \times 6 = 90 \, \text{cm}^2.

Therefore, the solution to the problem is Area=90cm2 \text{Area} = 90 \, \text{cm}^2 , which matches choice .

Answer

90

Exercise #9

Calculate the area of the following parallelogram:

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Video Solution

Step-by-Step Solution

To solve the exercise, we need to remember the formula for the area of a parallelogram:

Side * Height perpendicular to the side

In the diagram, although it's not presented in the way we're familiar with, we are given the two essential pieces of information:

Side = 6

Height = 5

Let's now substitute these values into the formula and calculate to get the answer:

6 * 5 = 30

Answer

30 cm²

Exercise #10

AB = 10 cm

The height of the rectangle is 5 cm.

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Calculate the area of the parallelogram.

Video Solution

Step-by-Step Solution

To solve this problem, we'll apply the formula for the area of a parallelogram:

  • Step 1: Identify the base and the height from the given information.
  • Step 2: Use the formula for the area of a parallelogram: A=base×height A = \text{base} \times \text{height} .
  • Step 3: Calculate the area using the given values.

Let's proceed with the solution:
Step 1: The given base AB AB is 10 cm, and the height is 5 cm.
Step 2: The formula for the area of a parallelogram is A=base×height A = \text{base} \times \text{height} .
Step 3: Substituting the provided values, we get:
A=10cm×5cm A = 10 \, \text{cm} \times 5 \, \text{cm}
A=50cm2 A = 50 \, \text{cm}^2

Therefore, the area of the parallelogram is 50cm2 50 \, \text{cm}^2 .

Answer

50

Exercise #11

AB = 32 cm

The height of the rectangle is 15 cm.

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Calculate the area of the parallelogram.

Video Solution

Step-by-Step Solution

To calculate the area of the parallelogram, we'll use the standard area formula for a parallelogram:

Area=base×height\text{Area} = \text{base} \times \text{height}

From the problem, the base AB=32cm AB = 32 \, \text{cm} and the height is 15cm 15 \, \text{cm} .

Substituting these values into the formula gives:

Area=32×15\text{Area} = 32 \times 15

Perform the multiplication:

32×15=48032 \times 15 = 480

Thus, the area of the parallelogram is 480 cm2 \text{480 cm}^2 .

The correct answer is choice 4: 480.

Answer

480

Exercise #12

ABCD is a parallelogram.

AH is the height.

DC = 6
AH = 3

What is the area of the parallelogram?

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Video Solution

Step-by-Step Solution

To solve this problem, let's apply the formula for the area of a parallelogram:

  • The given base DC DC is 6 cm.
  • The perpendicular height AH AH from point A A to base DC DC is 3 cm.

The formula for the area of a parallelogram is:

Area=base×height \text{Area} = \text{base} \times \text{height}

Substituting the given values, we have:

Area=6×3 \text{Area} = 6 \times 3

Thus, the area of parallelogram ABCDABCD is:

Area=18cm2 \text{Area} = 18 \, \text{cm}^2

Therefore, the solution to the problem is 18cm218 \, \text{cm}^2.

Answer

18 cm²

Exercise #13

AB = 5 cm

The height of the rectangle is 2 cm.

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Calculate the area of the parallelogram.

Video Solution

Step-by-Step Solution

To find the area of the parallelogram, we will follow these steps:

  • Identify the base and the corresponding height.
  • Use the formula for the area of a parallelogram.
  • Perform the calculation to find the area.

Let's execute these steps:

Step 1: Identify the given measurements. The base AB=5cm AB = 5 \, \text{cm} , and the height corresponding to it is 2cm 2 \, \text{cm} .

Step 2: Apply the formula for the area of a parallelogram, which is A=b×h A = b \times h .

Step 3: Substitute the known values into the formula:
A=5cm×2cm=10cm2 A = 5 \, \text{cm} \times 2 \, \text{cm} = 10 \, \text{cm}^2

Therefore, the area of the parallelogram is 10cm2 10 \, \text{cm}^2 .

Answer

10

Exercise #14

ABCD is a parallelogram.

AH is its height.

Given in cm:

AB = 7

AH = 2

Calculate the area of the parallelogram.

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Video Solution

Step-by-Step Solution

To find the area of the parallelogram, we follow these steps:

  • Step 1: Identify the base and height.
    Here, the base AB AB is 7cm 7 \, \text{cm} and the perpendicular height AH AH is 2cm 2 \, \text{cm} .
  • Step 2: Use the area formula for a parallelogram:
    Area=base×height \text{Area} = \text{base} \times \text{height}
  • Step 3: Substitute the given values into the formula:
    Area=7×2=14cm2 \text{Area} = 7 \times 2 = 14 \, \text{cm}^2

Therefore, the area of the parallelogram is 14 cm2 \textbf{14 cm}^2 .

Answer

14 cm².

Exercise #15

AB = 25 cm

The height of the rectangle is 13 cm.

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Calculate the area of the parallelogram.

Video Solution

Step-by-Step Solution

To calculate the area of the parallelogram, we'll use the formula for the area, which is the product of the base and the height.

  • Identify the base and height from the information given: The base AB AB is 25 cm and the height is 13 cm.
  • Apply the formula for the area: Area=Base×Height\text{Area} = \text{Base} \times \text{Height}.
  • Substitute the given values into the formula: Area=25×13\text{Area} = 25 \times 13.
  • Perform the multiplication: Area=325\text{Area} = 325 square centimeters.

Therefore, the area of the parallelogram is 325cm2 325 \, \text{cm}^2 .

This corresponds to choice 1: 325.

Answer

325