4 semicircles of 90º=1 circle
Area of the shade region=area of the square - area of a circle
1)we calculate the area of the square.
area of a square =slide²
slide=8 m
area of a square=(8 m)²=64 m².
2) we calculate the area of the circle:
area of a circle=πr²
r=4 m
area of a circle=π(4 m)²=16π m²≈50.27 m²
3) we calculate the area of the shaded region:
Area of the shaded region=64 m² - 50.27 m²=13.73 m²
answer:The area of the shaded regios is 13.73 m²