Question

find the area of a sector of a circle when the radius of a circle is 21 cm and angle of sector is 60 degree

Answer 1

Area of sector = A / 360 × πr².....(.A = angle)

= 60/360× 3.14×21×21

1/6× 3.14 ×441

1/6 × 1,384.74

230.79

Area of sector = 230.79cm²

Answer 2

Answer:

231 cm^2

Step-by-step explanation:

For a sector of a circle with radius 'r' and central angle 'A',

Area = (A/360) × π × r^2

Hence, in this case,

Area = (60/360) × (22/7) × (21 × 21)

Area = 231 cm^2