Volume/Surface Area of Cones and Pyramids

Volume = (1/3) * π * r² * h, where r is the radius and h is the height.

Surface Area = π * r * (r + l), where r is the radius and l is the slant height.

Volume = (1/3) * B * h, where B is the area of the base and h is the height.

Surface Area = B + (1/2) * P * l, where B is the area of the base, P is the perimeter of the base, and l is the slant height.

The base of a cone is a circle.

The base of a square pyramid is a square.

Area = π * r², where r is the radius.

π is commonly approximated as 3.14.

Volume = (1/3) * π * (3)² * (4) = 12π ≈ 37.68 in³.

Surface Area = π * 3 * (3 + 5) = 24π ≈ 75.40 in².