If an arc of a circle has a length of 4 pi cm and a radius of 6 cm, then what is the measure of its central angle?
Answers
Answered by
2
Answer:
s ( length of arc ) = 4π cm
r = 6 cm
since, theta (central angle) = s/r
=> theta = 4π/6
=> theta = 2π/3 radians
In degrees,
theta = (2π/3)(180/π) = 120°
Similar questions