Same base and same altitude. Yes, that is correct.
True
The volume of a three-dimensional figure is the amount of space it encloses. The volume V of a triangular prism is the product of the area B of a base and the height h of the prism. (The bases are triangles. In a special case of a right triangular prism the bases are right triangles)
I presume you mean a rectangular prism. Assuming all the angles are right angles, so that it is a rectangular parallelepiped, the volume is just the product of the three dimensions. I get 90.
Yes, the volume triples. When you have a height of 18, the volume will equal 864. (Volume of a pyramid is the area of the base x the height x 1/3)18*3=54. When you plug this in to the above listed formula, the volume will be 2592. Divide that by three and you get 864.
The volume of a rectangular prism is equal to length x width x height. Therefore, you have to choose the width so that the product of the three numbers is equal to the volume, i.e., equal to 144.
There are a number of possible 7-sided polyhedra. Three that come immediately to mind are: a hexagonal pyramid, a pentagonal prism, a "stretched" triangular pyramid (triangular base, rectangular sides, and then triangular faces meeting at an apex).
True
The volume of the prism is three times as much as that of the prism.
depends what kind of pyramid, if its a four sided pyramid then its the same but if its a three sided pyramid then the triangular prism has more
A prism or a pyramid
-- Measure the length, width, and height of the prism. -- Multiply the three numbers. The result is the volume of the prism.
Measure, then multiply(length of the prism) x (width of the prism) x (height of the prism) .The product of the three dimensions is the volume of the prism.
They are three dimension shaes - but different.
A three sided trangle
That's a triangular pyramid.
There are three altitudes to any triangle and you need to specify which one.
Take your choice of a pyramid or a prism.
Yes a hexagonal pyramid and a pentagonal prism