Question

the outer diameter of a pipe is 100 cm, and than the outer circumferences will be.....................
a)62.8m² b)628.32mm² c)6283.2m² d)628.32cm²

Answer 1

Answer:

Outer diameter of the pipe = 100 cm

So, the outer radius of the pipe = 50 cm

Circumference of the pipe = 2πr

⇒ (2*22*50)/7

⇒ 2200/7

⇒ 314.285 cm

So, the circumference of the pipe is 314.285 cm