britbrat4601
Find the volume of a square pyramid with base edges of 48 cm and a slant height of 26 cm.
A. 11,520 cm3
B. 23,040 cm3
C. 7,680 cm3
D. 768 cm3



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britbrat4601
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1/3(48)^2(26)=416.......?

Phydeaux
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V=1/3(l^2)(h)

britbrat4601
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@Phydeaux would u happen to know this , i have the form but dnt know y its not comming out right

Phydeaux
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l=48
h=26

Phydeaux
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Sooo V= ((48^2)(26))/3

Phydeaux
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Hmm. I get 19,968. Give me a sec.

britbrat4601
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wut does pl mean again

Phydeaux
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found my mistake.... I was using slant height rather than actual height. One sec.

Phydeaux
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I got C. The height is 10,
so ((48^2)(10))/3=V

britbrat4601
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thank u ya i was using 26

Phydeaux
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You have to use pythagorean theorem to calculate the height rather than slant height, and use regular height. You're welcome. :]

Sujay
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dw:1354756959126:dw sorry I meant the height to be 10 in my drawing, but here it is!!!