Find the length s of the arc that subtends a central angle of measure 3 rad in a circle of radius 5 cm.

Question

Find the length s of the arc that subtends a central angle of measure 3 rad in a circle of radius 5 cm.

s = ??? cm

Answer 1

In a circle with a radius of 5 cm and arc of 1 radian measures 5 cm. That is the definition of a radian!

In that circle and arc of 3 radians would be 15 cm.