Question

Find The Radius, When The Sector Area Is 66.99. (Let Me Attach The File)

Answer 1

Here's The Picture

Answer 2

How much of the circle has been filled up?

Answer 3

In terms of a fraction or percentage

Answer 4

My Question Is Just To Find The Radius

Answer 5

I know

Answer 6

120 degrees is what fraction of a full revolution?

Answer 7

120 over 360

Answer 8

120/360 = 1/3

Answer 9

so 1/3 of the circle is filled in

which means

1/3 = 66.99/x

x = ??

Answer 10

@jim_thompson5910 so i cross multiply next to get x

Answer 11

correct

Answer 12

there's a missing number for the cross multiply

Answer 13

1/3 = 66.99/x

1*x = 3*66.99

x = ??

Answer 14

200.97

Answer 15

That's the area of the full circle

Answer 16

Now use this formula

A = pi*r^2

to get the radius

Answer 17

u lost me

Answer 18

A = pi*r^2 is the area of any circle

Answer 19

A = 200.97 in this case

Answer 20

A = pi*r^2

200.97 = pi*r^2

r = ??

Answer 21

so divide each side by 3.14

Answer 22

correct

Answer 23

then take the square root of both sides to isolate r

Answer 24

help me out on that

Answer 25

@jim_thompson5910

Answer 26

what do you get so far