2 years ago

Help please!

Mathematics

2 answers:

777dan777 [17]2 years ago

8 0

Answer:

A = 139.5 in²

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = $\frac{1}{2}$ h (b₁ + b₂)

where h is the perpendicular height between the bases b₁ and b₂

here h = 9 , b₁ = 12 and b₂ = 2 + 12 + 5 = 19 , then

A = $\frac{1}{2}$ × 9 × (12 + 19) = 4.5 × 31 = 139.5 in²

timofeeve [1]2 years ago

4 0

(2x9)/2 =9
(5x9)/2 =22.5
12x9 =108
108+22.5+9=
139.5 in^2

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