Volume of Orthohedron Practice Problems & Solutions

Master rectangular prism volume calculations with step-by-step practice problems, worked examples, and comprehensive solutions for geometry students.

📚Master Orthohedron Volume Calculations Through Practice
  • Apply the V = length × width × height formula to solve complex problems
  • Calculate missing dimensions when given volume and two other measurements
  • Solve multi-step problems involving surface area and volume relationships
  • Work with algebraic expressions in rectangular prism volume calculations
  • Practice real-world applications using boxes, containers, and composite shapes
  • Master unit conversions and proper notation for volume measurements

Understanding Volume of a Orthohedron

Complete explanation with examples

Students start learning mathematics as early as elementary school, and as they progress, the subject becomes more and more complicated. Among others, the syllabus devotes a part to geometry and requires students to master different shapes and know how to calculate their area and volume. Are you also studying these days how to calculate the volume of a rectangular prism?

Volume of a rectangular prism:

V = length × width × height

A - how to calculate the volume of a rectangular prism

Detailed explanation

Practice Volume of a Orthohedron

Test your knowledge with 20 quizzes

The length of the cuboid is equal to 8 cm. and its width 4 cm.

Volume of the cuboid is equal to 96 cm.3

Calculate the height of the cuboid

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Examples with solutions for Volume of a Orthohedron

Step-by-step solutions included
Exercise #1

Shown below is a cuboid with a length of 8 cm.

Its width is 2 cm and its height is 4 cm.

Calculate the volume of the cube.

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Step-by-Step Solution

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

  • Step 1: Identify the given dimensions of the cuboid.
  • Step 2: Apply the formula for the volume of a cuboid.
  • Step 3: Perform the calculation using the known dimensions.

Now, let's work through each step:
Step 1: The problem states that the cuboid has a length of 8 cm, a width of 2 cm, and a height of 4 cm.
Step 2: We will use the volume formula for a cuboid, which is:

V=length×width×height V = \text{length} \times \text{width} \times \text{height}

Step 3: Substituting the given dimensions into the formula, we have:

V=8cm×2cm×4cm V = 8 \, \text{cm} \times 2 \, \text{cm} \times 4 \, \text{cm}

Performing the multiplication:

V=16cm2×4cm=64cm3 V = 16 \, \text{cm}^2 \times 4 \, \text{cm} = 64 \, \text{cm}^3

Therefore, the volume of the cuboid is 64cm3 64 \, \text{cm}^3 .

Answer:

64 cm³

Video Solution
Exercise #2

A cuboid has a length of is 9 cm.

It is 4 cm wide and 5 cm high.

Calculate the volume of the cube.

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Step-by-Step Solution

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

  • Step 1: Identify the given dimensions: length = 9 cm, width = 4 cm, height = 5 cm.
  • Step 2: Apply the formula for the volume of a cuboid, V=length×width×height V = \text{length} \times \text{width} \times \text{height} .
  • Step 3: Calculate the value by substituting the given dimensions into the formula.

Now, let's work through each step:

Step 1: Given dimensions are:
- Length = 9 cm
- Width = 4 cm
- Height = 5 cm

Step 2: Use the formula for the volume of a cuboid:
V=length×width×height V = \text{length} \times \text{width} \times \text{height}

Step 3: Substitute the values into the formula:
V=9cm×4cm×5cm V = 9 \, \text{cm} \times 4 \, \text{cm} \times 5 \, \text{cm}

Calculate the product:
V=180cm3 V = 180 \, \text{cm}^3

Therefore, the volume of the cuboid is 180cm3 180 \, \text{cm}^3 .

Answer:

180 cm³

Video Solution
Exercise #3

Below is a cuboid with a length of

8 cm.

Its width is 2 cm and its height is

4 cm.

Calculate the volume of the cube.

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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 for volume
  • Step 3: Perform the necessary calculations

Now, let's work through each step:

Step 1: The problem gives us the dimensions of a cuboid: length L=8cm L = 8 \, \text{cm} , width W=2cm W = 2 \, \text{cm} , and height H=4cm H = 4 \, \text{cm} .

Step 2: We'll use the formula to calculate the volume of a cuboid: V=L×W×H V = L \times W \times H .

Step 3: Substitute the given dimensions into the formula: V=8×2×4 V = 8 \times 2 \times 4 Calculate the result: V=16×4=64 V = 16 \times 4 = 64 Thus, the volume of the cuboid is 64cm3 64 \, \text{cm}^3 .

Therefore, the solution to the problem is 64cm3 64 \, \text{cm}^3 .

Answer:

64 cm³

Video Solution
Exercise #4

Look at the cuboid below:

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What is the volume of the cuboid?

Step-by-Step Solution

To determine the volume of a cuboid, we apply the formula:

  • Step 1: Identify the dimensions of the cuboid:
    • Length (l l ) = 12 cm
    • Width (w w ) = 8 cm
    • Height (h h ) = 5 cm
  • Step 2: Apply the volume formula for a cuboid:

The formula to find the volume (V V ) of a cuboid is:

V=l×w×h V = l \times w \times h

Step 3: Substitute the given dimensions into the formula and calculate: V=12×8×5 V = 12 \times 8 \times 5

Step 4: Perform the multiplication in stages for clarity:

First, calculate 12×8=96 12 \times 8 = 96

Then multiply the result by 5: 96×5=480 96 \times 5 = 480

Therefore, the volume of the cuboid is 480cm3\mathbf{480 \, \text{cm}^3}.

Answer:

480 cm³

Video Solution
Exercise #5

A rectangular prism has a base measuring 5 units by 8 units.

The height of the prism is 12 units.

Calculate its volume.

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Step-by-Step Solution

To solve this problem, we need to find the volume of the rectangular prism by following these steps:

  • Step 1: Identify the given dimensions.
  • Step 2: Apply the formula for the volume of a rectangular prism.
  • Step 3: Plug in the values and calculate the volume.

Let's proceed with each step:

Step 1: We are given the length = 5 units, width = 8 units, and height = 12 units of the prism.

Step 2: Use the formula for the volume of a rectangular prism:
Volume=length×width×height \text{Volume} = \text{length} \times \text{width} \times \text{height}

Step 3: Substitute the given dimensions into the formula:
Volume=5×8×12 \text{Volume} = 5 \times 8 \times 12

Now, perform the calculation:
5×8=405 \times 8 = 40
40×12=48040 \times 12 = 480

Thus, the volume of the rectangular prism is 480 480 cubic units.

Therefore, the correct choice from the given options, based on this calculation, is Choice 3: 480 480 .

Answer:

480

Video Solution

Frequently Asked Questions

What is the formula for calculating the volume of an orthohedron?

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The volume of an orthohedron (rectangular prism) is calculated using V = length × width × height. This formula works for all rectangular prisms, including cubes, boxes, and containers.

How do you find a missing dimension when volume is given?

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To find a missing dimension, rearrange the formula V = l × w × h. For example, if you need the height: h = V ÷ (l × w). Substitute the known values and solve for the unknown dimension.

What's the difference between orthohedron, rectangular prism, and cuboid?

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These terms refer to the same 3D shape: a box-like figure with 6 rectangular faces, 12 edges, and 8 vertices. Different textbooks may use different names, but the volume formula remains V = length × width × height.

How do you solve volume problems with algebraic expressions?

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1. Set up the equation using V = l × w × h 2. Substitute the given algebraic expressions 3. Expand and simplify the equation 4. Solve for the unknown variable 5. Calculate the final numerical answer

What units should I use for volume calculations?

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Volume is always measured in cubic units (cm³, m³, in³, etc.). Make sure all dimensions use the same unit before calculating. The final answer will be in the cubed version of that unit.

How do surface area and volume relate in rectangular prism problems?

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Surface area = 2(lw + lh + wh) while volume = lwh. Some problems give surface area to find volume, requiring you to solve the surface area equation first to find missing dimensions, then calculate volume.

What are common mistakes when calculating orthohedron volume?

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Common errors include: mixing up different units, forgetting to cube the final units, miscalculating when solving algebraic equations, and confusing surface area formulas with volume formulas.

How can I check if my volume calculation is correct?

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Verify by: ensuring units are cubed, checking that your answer makes sense given the dimensions, substituting back into the original equation, and comparing with similar problems you've solved correctly.

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