How to Calculate the Surface Area of Pyramids and Cones
The surface area of a pyramid or cone is the base plus the lateral faces. Both lateral formulas use the slant height, not the vertical height, which is the distinction that causes most errors. Examples Practice Questions: Determine the surface area of a triangular pyramid with a triangular base of area (15 text{ cm}^2), base […]
Calculating the Surface Area of Prisms and Cylinders
The surface area of a prism or cylinder is the two bases plus the lateral surface. For a cylinder that lateral part unrolls into a rectangle whose width is the circumference. Examples Practice Questions: Determine the surface area of a rectangular prism with dimensions (6 text{ cm} times 5 text{ cm} times 8 text{ cm}). […]
