In attempting to calculate the carrying capacity of a cylindrical pipe, avery measured the outer diameter to be 2 inches, neglecting to notice that the pipe was one eighth of an inch thick. by what percent did avery overestimate the carrying capacity of the pipe?

Avery overestimated the amount by about 13.8%.

The actual area of the pipe is about 11.04 in^2. This is found by using the formula. A = pi(r^2). The actual radius is 2 - 0.125 = 1.875

The measurement Avery found was 12.56 in^2, because he used 2 for the radius.

To find the percent increase, we use the formula below.

(12.56 - 11.04) / 11.04 = 13.8%

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