An angle of 1.8 radians at the center of the circle subtends an arc of length 23.4cm.

Find:
(a) The radius of the circle
(b) The area of the sector enclosed by the arc and the radii.

2 answers

r = 23.4/1.8 = 13
a = 1/2 * 13^2 * 1.8
please show the working