Finding Surface Area of Cubes and Prisms

This lesson teaches how to calculate the surface area of cubes and prisms by visualizing them as nets. It covers the properties of cubes and rectangular prisms, explaining how to find the area of each face and sum them to get the total surface area. Practical applications, such as using wrapping paper, are also discussed.

What is the defining characteristic of a cube?

• All its edges are of different lengths.

• It has four triangular faces.

• It has six rectangular faces.

• It has six square faces.

How do you calculate the area of a rectangle?

• Subtract the width from the length.

• Divide the length by the width.

• Multiply the base by the height.

• Add the length and width.

How many square centimeters is the surface area of a cube with 2 cm edges?

• 32 square centimeters

• 16 square centimeters

• 8 square centimeters

• 24 square centimeters

What is the surface area of a rectangular prism with dimensions 6x8, 6x1, and 1x8?

• 96 square feet

• 124 square feet

• 144 square feet

• 160 square feet

If a box is 12 inches wide, 14 inches deep, and 6 inches tall, how much wrapping paper is needed to cover it?

• 648 square inches

• 720 square inches

• 784 square inches

• 812 square inches