Surface Area and Nets

Front

What is surface area?

Back

The total area of the surface of a three-dimensional object.

Front

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

Back

Add the areas of all six faces: SA = 2(lw + lh + wh), where l = length, w = width, h = height.

Front

What is a net in geometry?

Back

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

Front

How many faces does a cube have?

Back

A cube has 6 faces.

Front

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

Back

SA = 6s², where s is the length of a side.

Front

What is the surface area of a square pyramid?

Back

SA = base area + lateral area = s² + 2(s * sl), where s is the side length and sl is the slant height.

Front

What is the surface area of a cylinder?

Back

SA = 2πr² + 2πrh, where r is the radius and h is the height.

Front

What is the difference between a prism and a pyramid?

Back

A prism has two parallel bases, while a pyramid has one base and triangular faces that meet at a point.

Front

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

Back

SA = base area + lateral area = (1/2 * base * height) + (perimeter of base * height).

Front

What is the surface area of a cone?

Back

SA = πr² + πrl, where r is the radius and l is the slant height.