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

I believe the formula is V=1/3*b^2*h but i dont get any of the choices when i try to solve it?

Question

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

I believe the formula is V=1/3*b^2*h but i dont get any of the choices when i try to solve it?

anonymous · Answer

that formulas right

anonymous · Answer

where b is the base and h is the height

anonymous · Answer

yes i tried it but it kept giving me a crazy answer

anonymous · Answer

show me your work

anonymous · Answer

1/3*48^2*26

anonymous · Answer

you're subbing in the slant height, when you need to be subbing in the height.

anonymous · Answer

ohh , okay i understand, so then how do i get the height instead of slant height?

anonymous · Answer

|dw:1355609362093:dw|

anonymous · Answer

so how would i put that into an equation? b/2*26?

anonymous · Answer

solve for h... and then put it in

anonymous · Answer

that's what im saying i dont understand how im supposed to solve for h

anonymous · Answer

pythagorean theorem

anonymous · Answer

okay , its 10 correct?

anonymous · Answer

yep

anonymous · Answer

thanks so much , i got my answer , it was 7680