Question

Find the radius, if the angle is 90degrees and the arc is 104

Answer 1

i'm guessing this is a circle with an arc length of 104?

Answer 2

yea

Answer 3

if so then the 104 is a fourth of the circumference
circum = 2pi*r

Answer 4

circum = 4*104

Answer 5

416?

Answer 6

ya then just solve for r

Answer 7

so than divide 416 by

Answer 8

r = 208/pi

Answer 9

66.24

Answer 10

arc=angle * r
[104=(\pi/2)*r\]
\[r=(2*104)\div(\pi)\]
\[r=208/\pi\]