Question

Use the arc length formula and the given information to find r.
s = 16 cm, θ = 48°; r = ?

Answer 1

what does the formula say?

Answer 2

arc length

Answer 3

( *2 r)/360

Answer 4

60/pi cm correct?

Answer 5

it says that: angle/360 * 2pier = arc length

Answer 6

or wait no 120/pi cm

Answer 7

But theta must be in radian

Answer 8

1/3

Answer 9

48/360 * 2pie*r=16cm
48/360 * 2 pie will get 0.84
0.84r=16
16/0.84=19cm which is the radius

Answer 10

First convert 48 degree into radian

Answer 11

4pi/15

Answer 12

yes then 16/4pi/15