Question

A circular ring outside dia 8cm and inside dia 6cm what should be the area

Answer 1

Hi,

Here's the solution :-

Diameter of outer circle = 8 cm

=> Radius of outer circle = 4 cm

Diameter of inner circle = 6 cm

=> Radius of inner circle = 3 cm

Area of circular ring =

Area of outer circle- Area of inner circle

= 2π × 4 - 2π × 3

= 2π ( 4-3)

= 2π (Ans)

Hope it helped (^_^)