Question

You are going to wash a large glass window
in the shape of a trapezoid. The lengths of
the bases of the window are 10 feet and 14
feet. The height is 8 feet. You can wash 6
square feet of the window in 1 minute. How
long will it take you to wash the entire
window?

Answer 1

Answer:

192ft

Step-by-step explanation:

A: h(b1 + b2)

Answer 2

Time taken to wash entire window is 12 minutes.

Given that;

Length of base = 14 ft

Length of upper base = 10 ft

Height of window = 6 ft

Time taken to wash 6 square feet = 1 min

Find:

Time taken to wash entire window

Computation:

Area of trapezoid = [(a+b) / 2]h

Area of window = [(10 + 14) / 2]6

Area of window = [(24) / 2]6

Area of window = 72 square feet

Time taken to wash entire window = 72 / 6

Time taken to wash entire window = 12 minutes

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