Question

12. What is the height of the trapezoid in yards? (Hint: Use the formula

A = 1/2h (b 1, + b2,) (Lesson 2)

Answer 1

height = 7 yards

Explanation:

the area (A) of a trapezoid is calculated as

A =
`(1)/(2)` h (b₁ + b₂ )

where h is the perpendicular height between the 2 parallel bases

here b₁ = 12 , b₂ = 9 and A = 73.5 , then

`(1)/(2)` h(12 + 9) = 73.5 ( multiply both sides by 2 to clear the fraction )

h(21) = 147

21h = 147 ( divide both sides by 21 )

h = 7 yards