Find the length of an arc of a circle with radius 12 cm if the arc subtends a central angle of 30°.

Question

Find the length of an arc of a circle with radius 12 cm if the arc subtends a central angle of 30°.

Answer 1

The formula for arc length is s=rθ. "r" in this case is 12cm and "theta" is 30 degrees, which converted to radians is pi/6.

s = 12*pi/6 = 2*pi

s ~= 6.28