Answer:
12.5 m²
Step-by-step explanation:
The shaded area is a triangle whose area (A) can be calculated as
A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )
Here b = 8 - 3 = 5 and h = 5 , then
A = [tex]\frac{1}2}[/tex] × 5 × 5 = 0.5 × 25 = 12.5 m²
