Question

The following shape has 2 pairs of parallel sides.

What is the area of the shape?

Answer 1

65 units^2

Explanation:

First find the area of the square:

A = s^2

s = 9, so 9^2 is 81

Then we have to find the area of the 2 white triangles....

1st right triangle (one on the left):

A = 1/2Bh

B = 3

h = 4

A = 1/2(3)(4) = 6

2nd right triangle (one on the right):

A = 1/2Bh

B = 5

h = 4

A = 1/2(5)(4) = 10

Now, we need to subtract the sum of the areas of the triangles from the square...

Square - (Triangle 1 + Triangle 2)

81 - (6+10) = 81 - 16 = 65