Question

A circular pond with a radius of 1.5 metres has a 20-inch border around it. 


If the water is 750mm deep, what is the capacity of the pond to 2 decimal places?

Answer 1

Answer:

$V=5.30\ m^3$

Step-by-step explanation:

we know that

The capacity of the pond is equal to the volume of a cylinder (circular pond)

$V=\pi r^{2} h$

where

$h=750\ mm=75\ cm=0.75\ m$ ---> to convert mm to m divide by 1,000

$r=1.5\ m$

assume

$\pi =3.14$

substitute

$V=(3.14)(1.5)^{2} (0.75)=5.30\ m^3$