Question

find the area of sector whose radius is 21 CM angle is 60 degree​

Answer 1

Answer:

X/360 × pie radius square

60/360×22/7 ×21×21

by cancellation we get answer as 231 cm square

area of sector is above answer

Answer 2

Answer:

Step-by-step explanation:

Area of sector=?

Radius=21cm

Angle=Φ=60°=π/3 radian

Area of sector=1/2πr^2Φ

=1/2*22/7*21*21*22/21

Area of sector =726cm^2