This document contains 4 math word problems involving radians, arc length, central angles, and circles. Problem 1 asks to find the central angle in radians given an arc length of 1.8 cm and radius of 1.2 cm. Problem 2 asks for the central angle subtended by an arc given the circumference. Problem 3a asks to calculate the radius given an arc length of 16 cm and central angle of 80 degrees, and 3b asks for the area of the circle. Problem 4 asks to find the central angle given an arc length of 14 inches and the frisbee radius.