Asked by anoynomous
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?
Answers
Answered by
Steve
volume of cone is 1/3 pi r^2 h
subtract the small cone from the large cone
That's how much is sand.
subtract the small cone from the large cone
That's how much is sand.
Answered by
anoynomous
what about 33dm circumfernce
Answered by
anoynomous
what about 33dm circumfernce
Answered by
Steve
well, you know that C = 2pi r, so,
r = 33/2pi
Forgot about that?
r = 33/2pi
Forgot about that?
Answered by
Vvuggogdrood
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