Question

if the area of a circular disc is 154 cm² . Find its radius [Take π = 22/7]​

Answer 1

Answer:

Area=154cm square

area=pi r square

154cm=22/7×r ×r

154cm×7/22=r×r

49cm=r square

r=7cm

circumference =2 pi r

2×22/7×7cm

2×22cm

44cm

hope it helps you.

Answer 2

Answer:

Area of circle = πr2

154 cm2 = 22/7 × R2

r= 7 cm

hope u find it helpful.