Surface Area and Nets Review!

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

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

Front

What is a net in geometry?

Back

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

Front

Which net corresponds to a cube?

Back

A net for a cube consists of 6 squares arranged in a way that can be folded into a cube.

Front

What is the surface area of a cube with side length 4 cm?

Back

The surface area of a cube is calculated using the formula: SA = 6s². For a side length of 4 cm, SA = 6(4)² = 96 cm².

Front

What is the formula for 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 = base area and h = height of the prism.

Front

How do you find the surface area of a cylinder?

Back

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

Front

What is the surface area of a rectangular brick with dimensions 5 cm x 9 cm x 20 cm?

Back

The surface area is calculated as SA = 2(lw + lh + wh) = 2(5*9 + 5*20 + 9*20) = 650 cm².

Front

What is the difference between surface area and volume?

Back

Surface area measures the total area of an object's surface, while volume measures the amount of space an object occupies.

Front

What is a triangular pyramid?

Back

A triangular pyramid is a three-dimensional shape with a triangular base and three triangular faces that meet at a point (the apex).