Ok what I think you mean is volume of a pyramid... but ill answer both.
Area of a triangle:
Base x height x 0.5
Volume of a pyramid:
Base area x height x 1/3
The formula to find the area of an octagonal pyramid is area of base plus area of sides.
The volume of a regular pyramid is 1/3*area of the base*hight
The formula for a square pyramid is one square attached to four triangles which meet at a point.There are other formulae for the surface area or for the volume.
(1/3) * (base area) * height
A pyramid with these measurements are technically impossible to construct. However if you follow the formula the surface area would be a negative amount.
first you find the area of the base and then you find the area one side of the pyramid an you time it with 3 if it is a triangular pyramid or 4 if it is a square pyramid
The formula to find the area of an octagonal pyramid is area of base plus area of sides.
from a pyramid
The answer depends on the what characteristic of the pyramid you want the formula for: its surface area, its volume or something else.
The volume of a regular pyramid is 1/3*area of the base*hight
formula of the volume of a prism = (base area)(height) formula of the volume of a pyramid = (1/3)(base area)(height) therefore, to convert the volume of a prism to that of a pyramid, just divide it by 3
It has to do with the surface area formula: To find the total surface area of a pyramid, use this equation: Surface Area = B + 1/2 * P * s B = base area P = perimeter of the base s = slant height To find the volume of a Pyramid, substitute into this equation: V=1/3Bh B=base area h=height of pyramid
The volume of a triangular pyramid can be found using the formula Volume=Base Area x height /3. Surface Area can be expressed as Surface Area =Base Area+0.5 x perimeter x side length.
The formula for a square pyramid is one square attached to four triangles which meet at a point.There are other formulae for the surface area or for the volume.
Volume of a pyramid in cubic units: 1/3*base area*height
(1/3) * (base area) * height
Area = ( 2 + 2√2 )a2