Understanding Surface Area of Rectangular Prisms

What is the surface area of a 3D figure?

• The total area of the outside layer

• The total area of the inside part

• The volume inside the figure

• The perimeter of the base

How many faces does a rectangular prism have?

• 4

• 12

• 6

• 8

What is the formula to calculate the surface area of a rectangular prism?

• Length x Width x Height

• 2(Length x Width) + 2(Width x Height) + 2(Height x Length)

• 2(Length + Width + Height)

• Length + Width + Height

Why do we multiply the area of one face by 2 in the formula?

• To account for opposite faces being equal

• It's a mathematical convention without reason

• Because all faces are the same

• To double the total surface area

If the front face of a rectangular prism is 6 inches by 2 inches, what is its area?

• 8 square inches

• 6 square inches

• 24 square inches

• 12 square inches

What is the area of the right face if its dimensions are 3 inches by 2 inches?

• 5 square inches

• 6 square inches

• 9 square inches

• 12 square inches

What is the purpose of unfolding a rectangular prism into a net?

• To visualize all faces for better understanding

• To find the volume of the prism

• To reduce the size of the prism

• To make it easier to paint

What is the combined area of the top and bottom faces if one face is 6 inches by 3 inches?

• 72 square inches

• 54 square inches

• 36 square inches

• 18 square inches

What is the total surface area of the rectangular prism?

• 84 square inches

• 60 square inches

• 48 square inches

• 72 square inches

How do we find the surface area of a rectangular prism?

• By multiplying the length by the width and height

• By calculating the area of each face and summing them up

• By adding the volume of all faces

• By finding the largest face and multiplying by six