Question

A pipe has a diameter of 20cm. What is the cross-sectional area of the pipe with units m^2.

Answer 1

`Area = 0.126 m^2`

Step-by-step explanation:

Since the crossection of cylinder is of circular shape

so here the crossectional area will be given as

`A = \pi r^2`

here we know that radius of the cylinder will be

`R = 20 cm`

so in SI units it is given as

`R = 0.20 m`

now we have

`Area = \pi (0.20)^2`

`Area = 0.126 m^2`