Question

find the area of sector of a circle whose radius is 36 cm cut off by an arc of length 12.5 cm​

Answer 1

Step-by-step explanation:

Given area of sector of circle =54π cm2

Radius of circle=36cm

Now area of circle=πr2×(360θ)

54π=360θ×πr2

360θ=36×3654 …………(1)

and length of arc=2πr(360θ)

L=2π×36×36×3654

[Length of arc =3πcm].