first off, do you mean the base is
"10 cm square" = 10 by 10 or 100cm^2
or just "10 cm squared" = 10 cm^2
?? In any case
V = 1/3 Bh
if the top 6m are removed, that is a similar pyramid of 2/5 scale, so its volume is 8/125 B. so subtract that from the original volume.
or use the handy formula derived at
en.wikipedia.org/wiki/Frustum
A right pyramid on a base 10cm square is 15m high .find the volume of the pyramid.if the top 6m of the pyramid are removed,what is the volume of the remaining frustum.
2 answers
Please check for typos. Do you really mean a 15 meter high structure on a 100 square CENTIMETER base?
In general the volume of a pointy object with straight sides is 1/3 the area of the base times the height.
Same for the top 6 meters so find it and subtract it.
In general the volume of a pointy object with straight sides is 1/3 the area of the base times the height.
Same for the top 6 meters so find it and subtract it.