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.

??? ft3

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.
 
               ??? ft3

welshfella · Answer

Volume of a cone is

(1/3) pi r^2 h

where r is the radius of the base and h is the height.

welshfella · Answer

the radius = half the diameter

welshfella · Answer

so work out the radius  ( half of 47) then put this = r  and also h = 42 into the above formula

welshfella · Answer

i won't tell you the exact answer but it should be around 24,000 ft3

anonymous · Answer

sorry. im back. i was reading something about this

anonymous · Answer

thank you for the help

welshfella · Answer

yw