Question

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

Related Questions

A thin non-conducting rod is bent to form the arc of a circle of radius a and subtends an angle at t... In a circle radius 10cm,an arc PQ subtends an angle of radians at the centre of the circle.Calculate... The circumference of a circle is 198cm.calculate the length of the arc which subtends an angle of 2π...