Answer:
A = 100 m²
Step-by-step explanation:
the area (A) of a trapezoid is calculated as
A = [tex]\frac{1}{2}[/tex] h (b₁ + b₂ )
where h is the height and b₁, b₂ the parallel bases
here h = 10 , b₁ = 12 , b₂ = 8 , then
A = [tex]\frac{1}{2}[/tex] × 10 × (12 + 8) = 5 × 20 = 100 m²