a regular square pyramid just fits inside a cube (the base of the pyramid is congruent to a face of the cube and the height of the pyramid is equal to the height of the cube). A right cone also just fits inside the same cube the diameter of the base of the cone, the height of the cone, and the height of the cube are all equal.) Which has the larger volume, the cone or the square pyramid?
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OpenStudy (anonymous):
@jim_thompson5910
jimthompson5910 (jim_thompson5910):
let's say we have a cube with side lengths of 1
what is the volume of this cube?
OpenStudy (anonymous):
oh wait isn't it 1
jimthompson5910 (jim_thompson5910):
yes the volume of this cube is 1
jimthompson5910 (jim_thompson5910):
what is the volume of the pyramid?
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OpenStudy (anonymous):
|dw:1423619088983:dw|
OpenStudy (anonymous):
Area of the base * Height * 1/3
jimthompson5910 (jim_thompson5910):
in this case, L, H and W are all equal to 1
jimthompson5910 (jim_thompson5910):
you have the correct formula
OpenStudy (anonymous):
so which has the larger volume
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jimthompson5910 (jim_thompson5910):
are you able to find the volume of the pyramid that fits inside this 1 by 1 by 1 cube?
OpenStudy (anonymous):
yes
jimthompson5910 (jim_thompson5910):
what is the volume in terms of a number (fraction, decimal or whole number)