the area of a pizza is 154 square centimeters what is the radius ? remeber a=nr^2 .... use n=22/7

a. square root (14)
b. square root (7)
c. 7
d. 14

Question

the area of a pizza is 154 square centimeters what is the radius ? remeber a=nr^2 .... use n=22/7

a. square root (14)
b. square root (7)
c. 7
d. 14

anonymous · Answer

the n I put is really pie but the keyboard doesn't have the pie sign

anonymous · Answer

so n=pie

anonymous · Answer

Firstly divide the area by pi

anonymous · Answer

@Loopki40 how do you do that?..

anonymous · Answer

I will start over, the area of a circle is A=pi r^2

SO plug in what you know to solve for the radius

154=(3.14)r^2

You need to isolate r so the first logical thing to do is divide both sides by pi

Better?

anonymous · Answer

so the final answer would be 14?

anonymous · Answer

Not sure where 14 came from
lpol Divide 154 by pi and you get approximately 49 = r^2

anonymous · Answer

Square root of both sides to isolate r.. your answer is 7

anonymous · Answer

it s multiple choice and 14 is one of the answers

anonymous · Answer

thank you