Question

juanita and lauren are painting a circular mural on one wall of the community center. the area of the mural is 33 square meters.

what is the radius?
remember a= pie r^2
use pie=22/7
explain.

Answer 1

@mathmath333

Answer 2

i dont get it

Answer 3

looks confusing.......

Answer 4

\(\large\tt \begin{align} \color{black}{area~~of ~~circle=33 ~~m^2----------(given)\\~\\
area~~of ~~circle=\pi r^2\\~\\
33=\pi r^2\\~\\
\pi r^2=33\\~\\
\dfrac{22}{7}\times r^2=33\\~\\
r^2=33\times \dfrac{7}{22}\\~\\
r^2=3\times \dfrac{7}{2}\\~\\
r^2= \dfrac{21}{2}\\~\\
r^2= 10.5\\~\\
r= \sqrt{10.5}\\~\\
\Large r= 3.24~~m\\~\\
}\end{align}\)

Answer 5

ohhh okay

Answer 6

well the choices are
sqrt 21/2 B.sqrt 4 C. 7/2 D. 4

Answer 7

think think

Answer 8

me?

Answer 9

yes lol

Answer 10

D ?

Answer 11

no C

Answer 12

have u carefully read all what i have done

Answer 13

i looked at it, its either C or D right?

Answer 14

because dont i estimate it? or round

Answer 15

omg

Answer 16

well it was 3.24 so i was wondering lol

Answer 17

so whts ur final answer

Answer 18

A?

Answer 19

explain

Answer 20

omg. lol

Answer 21

I

Answer 22

CANT

Answer 23

:(

Answer 24

lol it should be

\(r^2= \dfrac{21}{2}\\~\\
r=\sqrt{\dfrac{21}{2}}\)

Answer 25

oh medal

Answer 26

what about this one?
the area of a pizza is 264 square centimeters. what is the radius? use pie-22/7

Answer 27

same try it
pizza is round like circle right?

Answer 28

yeah

Answer 29

good

Answer 30

apply the same as i did

Answer 31

hmmm

Answer 32

sqrt of -22/7????? is that what i do?

Answer 33

@PRAETORIAN.10 help lol

Answer 34

u can show ur work here

Answer 35

cant i just put sqrt 22/7 in a calculator?

Answer 36

\(\large\tt \begin{align} \color{black}{area~~of ~~pizza(circle)=264 ~~cm^2----------(given)\\~\\
area~~of ~~circle=\pi r^2\\~\\
264=\pi r^2\\~\\
\pi r^2=264\\~\\
\dfrac{22}{7}\times r^2=264\\~\\
r^2=264\times \dfrac{7}{22}\\~\\
r^2=12\times 7\\~\\

r^2=4\times 3\times 7\\~\\

r= 2\sqrt{21}~~m\\~\\

}\end{align}\)

Answer 37

that looks hard O.O

Answer 38

@Data_LG2

Answer 39

the choices are
A. 84
B.sqrt 84
C.sqrt 42
D. 42