Question

find the circumference of a circle whose area is 60 pie cm squared.
a. 2 square root of 15 pie cm
b. 4 square root of 15 pie cm
c. 30 pie cm
d. 900 pie cm

Answer 1

@perl

Answer 2

PLZZ HELP

Answer 3

@wolf1728

Answer 4

circumference of a circle =2*pi*r
area of a circle =pi*r^2
solve of r => r=sqrt(area/pi)

Answer 5

i got 376

Answer 6

60 pi=pi r^2 => r=sqrt(60)

Answer 7

so whats the equation??? im lost

Answer 8

first find r using the area equation =pi r^2then use the value of r in circumference equatio =2*pi*r

Answer 9

whats r 60??

Answer 10

r = sq root of 60

Answer 11

7.745?

Answer 12

Yes - actually it is 7.746

Answer 13

7.746 times 2 and pi?? is that the final answer after??

Answer 14

you need the circumference
circum = 2 * PI * radius

Answer 15

48

Answer 16

r=sqrt(60)=sqrt(4*16)=2sqrt(15)
circ=2*pi*r= 2*2sqrt(15)*pi= 4 sqrt(15) pi

Answer 17

so its b? the final answer???

Answer 18

I get 48.67

Answer 19

is the final answer 4 square root of 15?

Answer 20

yes

Answer 21

I get 7.746*2 PI or
15.49 PI

Answer 22

ty

Answer 23

yes, that's it 4 * sq root (15)

Answer 24

thx guys i dont know who to give the medal to