A circle has a radius of 2. An arc in this circle has a central angle of 156 ?° ?? .

Question

A circle has a radius of 2. An arc in this circle has a central angle of 156
?°
?? .

Answer 1

radius = 2

angle = 156 degrees = 156(pi/180) = 39pi/45 = 13pi/15 radians

arc length = radius x radians = 2 x 13pi/15

= 26pi/15 units long

= about 5.45 units long