Question

if the length of an arc of a sector is 88 cm and the radius is 84 cm then the angle of the sector is​

Answer 1

By the formula

we will find the angle of sector

area of circumference of sector =Φ /360×2πr

360×88=Φ2πr

Φ=360×88/2π×84

Φ=31680×7/44×84

Φ=720×7/84

Φ=720/12

Φ=60°

thus, the angle will be 60.