Question

A sector of a circle with radious 10cm has central angle 72 degree . So find the area of the sector ? ​

Answer 1

$\bold{Answer}$

Radius = 10cm

Angle ( Ѳ) = 72°

We know that:

Area of Sector = Ѳ/360 × πr²

⟹ Area of sector = 72/360 × 22/7 × 100

⟹ Area of sector = 1/5 × 22/7 × 100

⟹ Area of sector = 22/7 × 20

⟹ Area of sector = 62.8 cm²

so,

Area of sector is 62.8 cm².

Answer 2

Answer:

area of the Sector = xπr^2/36o

X=angle, r = radius

72x3.14x10^2/360=62.8cm2