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Mathematics 62 Online
OpenStudy (anonymous):

A circle has an area of 153.86 square inches. Using 3.14 for pi, find the radius and circumference of the circle. Round your answer to the nearest hundredth when necessary. A) R = 7 inches .. C = 43.96 inches B) R = 24.5 inches .. C = 153.86 inches C) 49 inches .. C = 98 inches D) R = 8 inches .. C = 50.24 inches

OpenStudy (anonymous):

153.86=3.14\[\times r ^{2}\]

OpenStudy (anonymous):

153.86/3.14=49

OpenStudy (anonymous):

Actually I just need circumference and thank you

OpenStudy (anonymous):

49=\[r\] r=7

OpenStudy (anonymous):

So, your radius is about 7, and your diameter is 2r, so 14

OpenStudy (anonymous):

Circumference=3.14 times diameter 3.14 times 14

OpenStudy (anonymous):

Thanks and Good Job

OpenStudy (anonymous):

Your welcome :) and sometimes to solve these questions, you gotta work backwards :D

OpenStudy (anonymous):

lol :D Your The person and a life saver

OpenStudy (anonymous):

Thanks :)

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