+23254 The formula for a frustum of a cone is V = (Π·h/3)( R²+ Rr + r² )
where h is the height of the frustum and R and r are the two radii of the ends.
The formula for a frustum of a pyramid is V = (h/3)( A+ a + √(Aa) )
where h is th height of the grustum and A and a are the areas of the two ends.
(This formula was used by the ancient Egyptians, who didn't even have any algebra! or a number system as easy to use as ours!)
+23254 The formula for a frustum of a cone is V = (Π·h/3)( R²+ Rr + r² )
where h is the height of the frustum and R and r are the two radii of the ends.
The formula for a frustum of a pyramid is V = (h/3)( A+ a + √(Aa) )
where h is th height of the grustum and A and a are the areas of the two ends.
(This formula was used by the ancient Egyptians, who didn't even have any algebra! or a number system as easy to use as ours!)
