Question

juanita and lauran are painting a circular mural on one wall of the community center. the area of the mural is 88 square meters. what is the radius?
use pi=22/7 the answer wud be 11 right

Answer 1

@Jhannybean

Answer 2

.... ummm

Answer 3

Do you know the formula for the area of a circle?

Answer 4

pi equals radius times c

Answer 5

O_o

Answer 6

haha idk :( srry

Answer 7

xD

\(\large A = \pi r^2\) For a circle

Givens \(A = 88 \ m^2\) and \( \pi = \cfrac{22}{7} \) Let's change our ewuation around to solve for the radius :D

\[\large r^2 = \cfrac{A}{\pi}\]\[\large r = \pm \sqrt{\cfrac{A}{r}}\]\[\large r = \pm \sqrt{ \cfrac{88}{\cfrac{22}{7}}} = \pm \sqrt{28} \]

Answer 8

o i see now

Answer 9

omg. the second line from the bottom should have said \[\large r = \pm \sqrt{\cfrac{A}{\pi}} \]

Answer 10

That was a typo...

Answer 11

oh hahah i c it nowe soo my answer isnt 11

Answer 12

Yeah :D

Answer 13

can u help meh with one more??

Answer 14

Not atm :( I've got to head off OS for a little bit. I'll be afk D:

Answer 15

o okaii bye :)

Answer 16

Bye bye! Good luck :)

Answer 17

you too