There is a wide variety of geometric shapes, which you can read about in detail:
There is a wide variety of geometric shapes, which you can read about in detail:
ABDC is a deltoid.
AB = BD
DC = CA
AD = 12 cm
CB = 16 cm
Calculate the area of the deltoid.
The trapezoid ABCD is shown below.
AB = 2.5 cm
DC = 4 cm
Height (h) = 6 cm
Calculate the area of the trapezoid.
The trapezoid ABCD is shown below.
Base AB = 6 cm
Base DC = 10 cm
Height (h) = 5 cm
Calculate the area of the trapezoid.
Shown below is the deltoid ABCD.
The diagonal AC is 8 cm long.
The area of the deltoid is 32 cm².
Calculate the diagonal DB.
Given the trapezoid:
What is the area?
ABDC is a deltoid.
AB = BD
DC = CA
AD = 12 cm
CB = 16 cm
Calculate the area of the deltoid.
First, let's recall the formula for the area of a rhombus:
(Diagonal 1 * Diagonal 2) divided by 2
Now we will substitute the known data into the formula, giving us the answer:
(12*16)/2
192/2=
96
96 cm²
The trapezoid ABCD is shown below.
AB = 2.5 cm
DC = 4 cm
Height (h) = 6 cm
Calculate the area of the trapezoid.
First, let's remind ourselves of the formula for the area of a trapezoid:
We substitute the given values into the formula:
(2.5+4)*6 =
6.5*6=
39/2 =
19.5
The trapezoid ABCD is shown below.
Base AB = 6 cm
Base DC = 10 cm
Height (h) = 5 cm
Calculate the area of the trapezoid.
First, we need to remind ourselves of how to work out the area of a trapezoid:
Now let's substitute the given data into the formula:
(10+6)*5 =
2
Let's start with the upper part of the equation:
16*5 = 80
80/2 = 40
40 cm²
Shown below is the deltoid ABCD.
The diagonal AC is 8 cm long.
The area of the deltoid is 32 cm².
Calculate the diagonal DB.
First, we recall the formula for the area of a kite: multiply the lengths of the diagonals by each other and divide the product by 2.
We substitute the known data into the formula:
We reduce the 8 and the 2:
Divide by 4
8 cm
Given the trapezoid:
What is the area?
Formula for the area of a trapezoid:
We substitute the data into the formula and solve:
52.5
Look at the rectangle below.
Side AB is 2 cm long and side BC has a length of 7 cm.
What is the perimeter of the rectangle?
Look at the trapezoid in the diagram.
What is its perimeter?
Look at rectangle ABCD below.
Side AB is 10 cm long and side BC is 2.5 cm long.
What is the area of the rectangle?
Look at the deltoid in the figure:
What is its area?
Given the rhombus in the drawing:
What is the area?
Look at the rectangle below.
Side AB is 2 cm long and side BC has a length of 7 cm.
What is the perimeter of the rectangle?
Given that in a rectangle every pair of opposite sides are equal to each other, we can state that:
Now we can add all the sides together and find the perimeter:
18 cm
Look at the trapezoid in the diagram.
What is its perimeter?
In order to calculate the perimeter of the trapezoid we must add together the measurements of all of its sides:
7+10+7+12 =
36
And that's the solution!
36
Look at rectangle ABCD below.
Side AB is 10 cm long and side BC is 2.5 cm long.
What is the area of the rectangle?
Let's begin by multiplying side AB by side BC
If we insert the known data into the above equation we should obtain the following:
Thus the area of rectangle ABCD equals 25.
25 cm²
Look at the deltoid in the figure:
What is its area?
Let's begin by reminding ourselves of the formula for the area of a kite
Both these values are given to us in the figure thus we can insert them directly into the formula:
(4*7)/2
28/2
14
14
Given the rhombus in the drawing:
What is the area?
Let's remember that there are two ways to calculate the area of a rhombus:
The first is the side times the height of the side.
The second is diagonal times diagonal divided by 2.
Since we are given both diagonals, we calculate it the second way:
14
Look at the rectangle ABCD below.
Side AB is 6 cm long and side BC is 4 cm long.
What is the area of the rectangle?
Look at the rectangle below.
Side DC has a length of 1.5 cm and side AD has a length of 9.5 cm.
What is the perimeter of the rectangle?
What is the perimeter of the trapezoid in the figure?
Look at the deltoid in the figure:
What is its area?
ACBD is a deltoid.
AD = AB
CA = CB
Given in cm:
AB = 6
CD = 10
Calculate the area of the deltoid.
Look at the rectangle ABCD below.
Side AB is 6 cm long and side BC is 4 cm long.
What is the area of the rectangle?
Remember that the formula for the area of a rectangle is width times height
We are given that the width of the rectangle is 6
and that the length of the rectangle is 4
Therefore we calculate:
6*4=24
24 cm²
Look at the rectangle below.
Side DC has a length of 1.5 cm and side AD has a length of 9.5 cm.
What is the perimeter of the rectangle?
Since in a rectangle every pair of opposite sides are equal to each other, we can state that:
Now we can add all the sides together and find the perimeter:
22 cm
What is the perimeter of the trapezoid in the figure?
To find the perimeter we will add all the sides:
24
Look at the deltoid in the figure:
What is its area?
To solve the exercise, we first need to know the formula for calculating the area of a kite:
It's also important to know that a concave kite, like the one in the question, has one of its diagonals outside the shape, but it's still its diagonal.
Let's now substitute the data from the question into the formula:
(6*5)/2=
30/2=
15
15
ACBD is a deltoid.
AD = AB
CA = CB
Given in cm:
AB = 6
CD = 10
Calculate the area of the deltoid.
To solve the exercise, we first need to remember how to calculate the area of a rhombus:
(diagonal * diagonal) divided by 2
Let's plug in the data we have from the question
10*6=60
60/2=30
And that's the solution!
30