Question

Four congruent right triangles are cut off the corners of a square. The diagram below shows

the dimensions of thesquare and the congruent right triangles.

What is the area of the shaded part of the diagram?
A. 18 sq. in
B. 20 sq. in
C. 28 sq. in
D. 34 sq. in

Answer 1

C

Explanation:

Find area of all trinagles and subtract that by total area of square.