Answer:
shaded area ≈ 1486 m²
Step-by-step explanation:
The area (A) of the shaded region is calculated as
A = area of triangle - area of circle
area of Δ = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the height )
here b = 60 and h = 60 , then
area of Δ = [tex]\frac{1}{2}[/tex] × 60 × 60 = 30 × 60 = 1800 m²
area of circle = πr² ( r is the radius )
given diameter = 20 m , then r = 20 ÷ 2 = 10 m and using π ≈ 3.14 , then
area of circle ≈ 3.14 × 10² ≈ 3.14 × 100 ≈ 314 m²
Then
A = 1800 - 314 ≈ 1486 m²
