Question

A circle has a radius of 12. 6 cm. What is the exact length of an arc formed by a

central angle measuring 100°?


o 79. 12 cm


o 71 cm


0 441 cm


• 8. 51 cm

Answer 1

`(100)/(360) = (l)/(25.2\pi)`

`l = (5)/(18) (25.2\pi) = 7\pi`

The exact length of the arc is 7π cm.