A "formula" is some mathematical rule for calculating something you wish to know. So "the formula of the rectangle-base pyramid" will be some expression which tells you something that you want to know about it. Beyond that there is no way anyone can tell you, since you do not say what feature of the pyramid you are thinking about (height, volume, surface area, weight...).
The answer depends on the what characteristic of the pyramid you want the formula for: its surface area, its volume or something else.
The derivation of the formula of pyramid can be gained easily based on the formula for a triangular prism. A pyramid is like two prisms joined together.
A rectangle based pyramid or just a random 2-d sketch.
A pentagonal pyramid, A rectangle based dipyramid, A triangular prism.
we dont know
The answer depends on the what characteristic of the pyramid you want the formula for: its surface area, its volume or something else.
A rectangle based pyramid!
No. A triangular pyramid describes a triangle whose base is a triangle (not just the sides which define it as a pyramid), whereas a rectangular pyramid is one whose base is a rectangle. A triangle and a rectangle are not the same (a triangle is not a rectangle, and a rectangle is not a triangle), so it would be incorrect to refer to a triangle-based pyramid as a rectangle pyramid.
The best way to describe it unambiguously is calling it a rectangle based pyramid.
It could be a rectangle-based pyramid.
Formula for volume of pyramid is 1/3*base area*height Formula for area of rectangle (in this case the base) is length*breadth So, the volume of the pyramid is 1/3*12*5*9=180m3
A pyramid has a based that is a polygon such as a triangle or rectangle. The other sides of a pyramid consist of triangles, which are usually the same size.
In trigonometry, we call it a rectangular pyramid.
The derivation of the formula of pyramid can be gained easily based on the formula for a triangular prism. A pyramid is like two prisms joined together.
A rectangle based pyramid.
A rectangle is like a square so, yes.
Rectangular-based pyramid