Surface Area of Rectangular Prisms

The video tutorial explains how to calculate the surface area of a rectangular prism. It begins by defining a rectangular prism and its six faces. The teacher then explains the concept of surface area as the sum of the areas of all faces. The tutorial proceeds with step-by-step calculations for each face, using given dimensions, and concludes by summing these areas to find the total surface area. The final result is labeled in square inches.

What is a rectangular prism?

• A shape with no edges

• A two-dimensional shape with four sides

• A three-dimensional shape with six faces

• A shape with only one face

How many faces does a rectangular prism have?

• Six

• Five

• Seven

• Four

What is the formula for calculating the area of a face?

• Length - Width

• Length / Width

• Length + Width

• Length x Width

If the length of a face is 8 and the width is 9, what is the area of that face?

• 64

• 81

• 72

• 90

What is the area of the front face if the length is 5 and the width is 9?

• 35

• 40

• 45

• 50

How do you find the total area of the first three faces?

• Subtract the areas

• Add the areas

• Divide the areas

• Multiply the areas

What is the total area of the first three faces?

• 15700

• 157

• 157000

• 1570

Why do we double the area of the first three faces?

• To increase the total area

• To reduce the total area

• To make the calculation easier

• To account for the hidden faces

What is the final surface area of the rectangular prism?

• 314

• 3140

• 31400

• 314000

What unit is used for the final surface area?

• Feet squared

• Inches squared

• Feet

• Inches