Question

This trapezoid represents the base of a right prism that has a surface area of 1280 square feet. The sum of the lengths of the legs of the trapezoid is 52 feet. What is the height of the prism? Enter your answer in the box.

Answer 1

El area del trapecio mresponde a la relación

A = 1/2(B + b)*h

B = base mayor

b = bas menor

h = altura

En el caso en esrudio

250 = 1/2(B + 20)*10

2*250/10 = B + 20

50 = B + 20

50 - 20 = B

B = 30

BASE MAYOR = 30 PIES