Question

A circle has a diameter of 15 meters. Calculate the

length of the arc formed by a central 120° angle.

Answer 1

15.7 meters

Explanation:

Applying,

s = πd∅/360°..................... Equation 1

Where s = length of the arc formed, d = diameter of the circle, ∅ = angle formed by the center of the circle, π = pie.

From the question,

Given: d = 15 meters, ∅ = 120°

Constant: π = 3.14

Substitute these values into equation 1

s = (3.14×15×120)/360

s = 15.7 meters

Hence the lenght of the arc formed is 15.7 meters