What is a pyramid? A pyramid is a three dimensional figure that has a base and an apex which you can think of as a point.
The formula for volume equals 1/3 * base * height
The base area will depend on the shape of the base.
For example if the shape of the base is a square you would just multiple length times width
If the shape is a triangle you would take ½ base * height to get the base and then multiply this by the height of the triangle.
Problem 1. Find the volume of a pyramid with a square base that has a side of 4 units and a height of 5 units.
Step 1. Find the base area 4 * 4 = 16 units
Step 2. Multiply base area times height = 16* 5 = 80 units
Step 3. Multiply this by 1/3 ( remember the formula is 1/3 * base * height = 1/3*80 = 26.6 units cubed
Problem 2. Find the volume of a pyramid with a triangle base with a base of 6 units and a height base of 8 units and a pyramid height of 7 units
Step 1. Find the base area using the formula ½ base * height
Step 2. ½ * 6 * 8 = 24 units
Step 3. Find the volume using 1/3 * base * height3
Step 4. 1/3 * 24 * 7 = 8*7
Step 5. 8*7 = 56 units cubed