Question

pls solve this today I am going to write my exam​

Answer 1

Answer:

A. 64.17cm2

Step-by-step explanation:

Area of a Sector of Circle = (θ/360º) × πr2, where, θ is the angle subtended at the center, given in degrees, r is the radius of the circle.

area of sector with radius as 21cm = (30/360) ×pi(21^2)

=115.45cm2

area of sector with radius as 14cm = 51.31

so area of shaded part = 115.45-51.31

=64.14cm2