Surface Area of Nets + 3D Figures

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 cube?

Back

The surface area of a cube is calculated using the formula: SA = 6a², where 'a' is the length of one side of the cube.

Front

What is a net in geometry?

Back

A net is a two-dimensional shape that can be folded to form a three-dimensional figure.

Front

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

Back

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

Front

What is 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 the formula for 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

How do you find the surface area of a cone?

Back

The surface area of a cone is calculated using the formula: SA = πr(r + l), where 'r' is the radius and 'l' is the slant height.

Front

What is the total surface area of a figure?

Back

The total surface area of a figure is the sum of the areas of all its surfaces.

Front

If a cube has a side length of 3 cm, what is its surface area?

Back

The surface area is 54 cm².

Front

If a rectangular box has dimensions 3 cm, 4 cm, and 5 cm, what is its surface area?

Back

The surface area is 62 cm².