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angles & volumes: slant hts of similar pyramids in ratio 1:5
- Thread starter sayyruhh
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Re: angles and volumes
What is the expression (formula) for volume of a pyramid (involving slant height)?
If your text-book doesn't help, use google and let us know what you find.
sayyruhh said:The slant heights of two similar pyramids are in the ratio 1:5. The volume of the smaller pyramid is 60 m cubed. What is the volume in cubic meters of the larger pyramid?
What is the expression (formula) for volume of a pyramid (involving slant height)?
If your text-book doesn't help, use google and let us know what you find.
Re: angles and volumes
Yes. Now you don't know B and H for the smaller pyramid, but you do know BH.
How does H change when you expand the pyramid by a factor of 5?
How does B change?
So how does BH change?
sayyruhh said:1/3BH?
Yes. Now you don't know B and H for the smaller pyramid, but you do know BH.
How does H change when you expand the pyramid by a factor of 5?
How does B change?
So how does BH change?