A sector of a circle has a central angle of 30 ∘ . Find the area of the sector if the radius of the circle is 13 cm.

Question

find the area of the sector

Answer 1

30/360 * pi * 13^2 =

1/12 * pi * 169 =

169 * pi/12

For pi=22/7, the approximation is

(169*22)/(12*7) = 3817/84 = 44.261904761904761904761904761905

For pi=3.142

169 * 3.142/12 = 44.249833333333333333333333333333