Use the formula for the area of a trapezoid A=h(b1+b22)

, where A is area, b1 and b2 are the length of the bases, and h is the height, to answer the question. How many square feet of grass are there on a trapezoidal field with a height of 75 ft and bases of 125 ft and 81 ft?

3 answers

To find the area of the trapezoid, we can use the formula A = h(b1+b2)/2.

Given:
h = 75 ft
b1 = 125 ft
b2 = 81 ft

First, calculate the sum of the bases, (b1 + b2):
125 ft + 81 ft = 206 ft

Next, multiply the sum of the bases by the height, and divide by 2:
A = (206 ft * 75 ft)/2

A = 15,450 sq ft

Therefore, there are 15,450 square feet of grass on the trapezoidal field.
Write an algebraic expression for the following word phrase: the quotient of r and 12.
(1 point)

r • 12

r + 12

r ÷ 12

r – 12
r * 12