Answer:
Step-by-step explanation:
Area of shaded region = Area of Square - [ 2*area of semicircles + area of rectangle]
Square:
side = 9 m
Area = Side * side = 9*9 = 81 m²
Rectangle:
length = 10 m
width = 2 m
Area = length * width
= 10 * 2
= 20 m²
Semicircle:
diameter = 6 m
r = 6/2 = 3 m
Area of semicircle = πr²/2
Area of two semicircles = 2* πr²/2 = πr²
= 3.14 * 3 *3
= 28.26 m²
Area of shaded region = 81 - [ 20 + 28.26]
= 81 - 48.26
= 32.74 m²
