Respuesta :

Assuming 15 is the length of the "roof" of the trapezoid and 23 is the length of the entire base of the trapezoid:

ANSWER
171 square units

EXPLANATION
The area of a trapezoid is given by 

   Area = 1/2(a+b)(h)

where a and b are the lengths of the "roof" and the base (order of addition does not matter) and h is the height of the trapezoid.

Therefore,

   Area = 1/2(15 + 23)(9) = 171

The area of this trapezoid is 171 square units.
Creati
Hey there! :)

The formula for finding area of a trapezoid ⇒ (side a + side b) · h) ÷ 2

Side a ⇒ 15
Side b ⇒ 23

23 + 15 = 38

h = 9

38 × 9 = 342

342 ÷ 2 = 171

The area of the trapezoid ⇒ 171 

Hope this helps :)

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