A quarry shaped like a cone has a height of 42 ft and a diameter of 47 ft.

What is the volume of the quarry?
Round your answer to one decimal place and use 3.14 to approximate pi.

Question

A quarry shaped like a cone has a height of 42 ft and a diameter of 47 ft.
 
What is the volume of the quarry?
Round your answer to one decimal place and use 3.14 to approximate pi.

sleepyjess · Answer

Welcome to OpenStudy! Do you know the formula for volume of a cone?

anonymous · Answer

no i dont @sleepyjess

sleepyjess · Answer

Ok :) $V = \pi r^2\dfrac h3$

anonymous · Answer

ok so what would it come out to be tho?

sleepyjess · Answer

What is the radius?

anonymous · Answer

im sorry idk this is my older brothers hwrk and i was trying to prove to him im not an idiot but i honestly dont know the qnswer its ok id u cant help me i understand

sleepyjess · Answer

The radius is half of the diameter :0

sleepyjess · Answer

*:)

anonymous · Answer

so then what do i do

sleepyjess · Answer

diameter/2

anonymous · Answer

so 23.2?

sleepyjess · Answer

23.5

sleepyjess · Answer

Now we have the height as 42, so just substitute those numbers into the formula

anonymous · Answer

so how would i set that up and put it all together

sleepyjess · Answer

oh wait, first we have to square the radius

anonymous · Answer

ok then how is it all set ip once it puts together