Question

A square is shown having each side equal to 0.75 inch. Each side of the square has a triangle on it. The height of the triangle is labeled as 0.8 inch.
What is the surface area of the figure?
A.0.5625 square inch B. 0.7625 square inch C. 1.5625 square inches D. 1.7625 square inches

Answer 1

The area of the square can be found by...
0.75 • 0.75 = .5625

The area of one triangle can be found by...
1/2 • 0.8 • 0.75 = .3

In order to find the total surface area of the figure, you must...
.5625 + 4(.3) = 1.7625

So the answer is D