Question

If the angular measure of an arc is 36° and its length is 10 cm, then find the circumference of the circle.​

Answer 1

1. Divide the given angle by 360 deg.

2. Multiply this fraction with the expected circumference I. e. 2πr

3. Equate this to the given length and calculate the value of the only variable "r"

ans. r=50/π

Answer 2

angular measure of an arc = measure of central angle = 36°

HOPE IT HELPS.............