Finding surface area using nets

Front

What is surface area?

Back

Surface area is the total area that the surface of a three-dimensional object occupies.

Front

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

Back

To find the surface area of a rectangular prism, use 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 cube?

Back

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

Front

How do you calculate the surface area of a square pyramid?

Back

The surface area of a square pyramid is calculated using the formula: SA = s² + 2(s * l), where s is the length of the base and l is the slant height.

Front

What is a net in geometry?

Back

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

Front

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

Back

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

Front

What is the surface area of a cylinder?

Back

The surface area of a cylinder is calculated using the formula: SA = 2πr² + 2πrh, where r is the radius and h is the height.

Front

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

Back

Lateral surface area refers to the area of the sides of a 3D shape, while total surface area includes the area of the bases as well.

Front

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

Back

The surface area of a triangular pyramid is calculated using the formula: SA = (base area) + (1/2 * perimeter of base * slant height).

Front

What is the importance of units in surface area calculations?

Back

Units are important in surface area calculations to ensure that the measurements are consistent and the final answer is in the correct unit of area (e.g., square inches, square centimeters).