Surface Area and Properties of Cubes

This video tutorial from Your Teacher introduces the concept of surface area, focusing on calculating the surface area of a cube. It explains that surface area is the sum of all the areas of a three-dimensional figure's faces. The tutorial demonstrates how to find the surface area of a cube by calculating the area of one face using the formula for the area of a square, then multiplying by the number of faces. The example provided uses a cube with a side length of 4 inches, resulting in a total surface area of 96 square inches.

What is the surface area of a three-dimensional figure?

• The sum of the areas of all its faces

• The volume of the figure

• The length of its edges

• The perimeter of the figure

How many faces does a cube have?

• 8

• 4

• 6

• 5

What is the formula for the area of one face of a cube?

• Area = side - side

• Area = side / side

• Area = side * side

• Area = side + side

If the side length of a cube is 4 inches, what is the area of one face?

• 12 inches squared

• 16 inches squared

• 20 inches squared

• 8 inches squared

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

• 64 inches squared

• 80 inches squared

• 100 inches squared

• 96 inches squared