Question

For the sectors with given measures, find the length of
(n=3.14)
i) central angle 45°, r = 16 cm
(ii) central an
iii) central angle 60°, r = 36 cm
(iv) central ar​

Answer 1

Area = π r 2

C

360

where:

C is the central angle in degrees

r is the radius of the circle of which the sector is part.

π is Pi, approximately 3.142

This is the method used in the animation above.