Question

What is the area of the shaded region?

Answer 1

10cmsquare

Explanation:

name the triangle ABC

use pythagoras theo.

ACsq=ABsq+BCsq

ACsq=5×5 + 4×4

ACsq=25+16

ACsq=41

AC=sq root 41

`√(41)`

ar shaded region=(use pythagoras again with the shaded triangle)

root of 41×root of 41-4×4

=41-16

=25

root of 25=5cm