Surface Area

Front

What is surface area?

Back

Surface area is the total area that the surface of a three-dimensional object occupies. It is measured in square units.

Front

How do you calculate the surface area of a rectangular prism?

Back

The surface area of a rectangular prism is calculated using the formula: SA = 2(lw + lh + wh), where l is length, w is width, and h is height.

Front

What is the formula for the surface area of a cylinder?

Back

The surface area of a cylinder is calculated using the formula: SA = 2πr(h + r), where r is the radius and h is the height.

Front

What is lateral surface area?

Back

Lateral surface area is the area of the sides of a three-dimensional object, excluding the top and bottom surfaces.

Front

How do you find the lateral surface area of a cylinder?

Back

The lateral surface area of a cylinder is calculated using the formula: LSA = 2πrh, where r is the radius and h is the height.

Front

What is the surface area of a cube?

Back

The surface area of a cube is calculated using the formula: SA = 6s², where s is the length of a side.

Front

What is a composite solid?

Back

A composite solid is a three-dimensional shape that is made up of two or more simple shapes.

Front

How do you find the surface area of a triangular prism?

Back

The surface area of a triangular prism is calculated using the formula: SA = bh + (perimeter of base) * height, where b is the base area and h is the height.

Front

What is the surface area of a sphere?

Back

The surface area of a sphere is calculated using the formula: SA = 4πr², where r is the radius.

Front

What is the difference between total surface area and lateral surface area?

Back

Total surface area includes all surfaces of a solid, while lateral surface area only includes the sides, excluding the top and bottom.