Question

PLEASE HELP
What is the radius of a circle with an area of 78.5 square inches?

Answer 1

\[A = \pi(r)^2\]
If this is an equation we could use, how would you go about plugging in values?

Answer 2

idk

Answer 3

im not very bright help meh

Answer 4

\[78.5 = \pi (r)^2\] If you're solving for "r", and pi has a value of 3.14, don't we have everything except r?

Answer 5

he stold that from me f you're solving for "r", and pi has a value of 3.14, don't we have everything except r?

Answer 6

@youngthug1345 I've never met you before. ¯\_(ツ)_/¯

Answer 7

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Answer 8

Right, well...

What you need to do to solve this equation is look for "r." Doing this requires you to move items around in your equation in order to get "r" alone.

\[78.5 = \pi(r)^2\] would then equal \[\frac{ 78.5 }{ \pi } = r^2\] which would then turn into \[\sqrt{\frac{ 78.5 }{ \pi }} = r \].

Answer 9

thank you @_Squish

Answer 10

Sure thing.

Answer 11

yo my new acount\