Question

A cone 7dm high and 6 dm in diameter is placed on the ground. Sand is poured over it until conical heap 21 dm high and 33 dm circumference at the bottom is formed. Find how many m^3 of sand is there?

Answer 1

i m confused over 33dm circumfernce part,can anybody explain

Answer 2

Here's what the situation looks like:
Basically, there's a solid cone covered in a larger conical pile of sand.