This leads to the corollary concerning the lateral area of the frustum of a regular pyramid.
The top of the piston forms the frustum of the cone and the pistons are 110 mm.
If the upper base is equal to the lower base, the frustum becomes a cylinder, and still the proposition remains true.
A stick of timber is in the shape of the frustum of a square pyramid, the lower base being 22 in.
Wa'al, jest cut off the top, and what's left will be the frustum.
The vessel proper was a cylinder; its base, a plane; its top, the frustum of a cone, surmounted by a tower upon a tower.
The solids divided in given ratios are the sphere, the pyramid, the cone and a frustum thereof.
It was built in the form of a frustum of a pyramid, and was fifty-four feet square at the bottom and six feet square at the top.
Of course, when I was taught how to measure a cone, I was also instructed to do the same with the frustum of one.
The lodge, therefore, was not a perfect cone, but the frustum of one; and in this it differed from the lodge of the Comanches.
1650s, from Latin frustum "piece broken off," from PIE *bhrus-to-, from root *bhreu- "to cut, break up."