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Mathematics
OpenStudy (anonymous):

The circumference of a circular painting is 53.38 feet. What is the radius of the painting? Use 3.14 for pi and do not round your answer.

6 years ago
Parth (parthkohli):

Do you know the formula for circumference?

6 years ago
OpenStudy (anonymous):

pi times diameter

6 years ago
Parth (parthkohli):

Hmm exactly :D

6 years ago
Parth (parthkohli):

Or you could say 2 times radius times pi

6 years ago
Parth (parthkohli):

2 times radius is same as diameter :P

6 years ago
Parth (parthkohli):

So you can isolate r.

6 years ago
Parth (parthkohli):

\(\Large \color{MidnightBlue}{\Rightarrow 2 * 3.14 * r = 53.38 }\) \(\Large \color{MidnightBlue}{\Rightarrow 6.28 * r = 53.38 }\) \(\Large \color{MidnightBlue}{\Rightarrow r = 8.49569 }\)

6 years ago
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