Question

A cone has a radius of 4.96 cm and a volume of 102 cm³

The question is asking for an estimate so I rounded the values that I have
Can anyone use MY working out (1 mark) to solve the rest of the question pls?

Answer 1

4

Explanation:

Volume=1/3πr²h

102=1/3 x π x 4.96² x h

102=1/3 x π x 24.6016 x h

102=25.7627 x h

h=102/25.7627

h=3.96

Estimate for h is 4

Answer 2

h= 12/pi OR 3.81972

Explanation:

`100= (1)/(3)5^(2)h`

`100= (1)/(3)\pi 25h`

`100= (25\pi h)/(3)`

`(12)/(\pi ) =h`