Question

What is the area of the figure? Round to the nearest tenth.

45 m
3 m
3 m
7.5 m

A 36.0 m2
B. 22.5 m2
C. 45.0 m2

D. 72.0 m2

Answer 1

letter A

Explanation:

This is made up of 4 triangular segments. If we assume the cross section is perpendicular then we can use the 1/2b*h formula for each piece with the given values. So we have 2 triangles with the formula: 1/2(3)*(4.5)=6.75 * 2 triangles = 13.5.

Then for the bottom 2 you have 1/2(3)*7.5=11.25, times 2 triangles =22.5

So, 13.5+22.5=36, or letter A