A metal pipe is 77 cm long. Its inner diameter is 4 cm and outer diameter is 4.4 cm. Find its INNER curved surface area. (Take π = 22/7.)

Question

Accepted Answer

968 sq cm. Inner radius = 2 cm. Inner CSA = 2 × 22/7 × 2 × 77 = 968 sq cm. 1064.8 is the outer CSA (radius 2.2 cm).

A metal pipe is 77 cm long. Its inner diameter is 4 cm and outer diameter is 4.4 cm. Find its INNER curved surface area. (Take π = $\frac{22}{7} .$ )