Calculating Surface Area of Rectangular Prisms

The video tutorial covers the concept of surface area for rectangular prisms, using real-world examples such as wrapping a box, constructing a fish tank, and building a garden fence. It explains how to apply the surface area formula and adjust it for missing faces in practical scenarios.

What is the formula for calculating the surface area of a rectangular prism?

• lwh

• 2(l + w + h)

• lh + lw + wh

• 2(lh + lw + wh)

If a box has dimensions 5 inches by 3 inches by 4 inches, what is its surface area?

• 110 square inches

• 72 square inches

• 94 square inches

• 60 square inches

For a fish tank with dimensions 5 feet by 3 feet by 4 feet, missing the top face, what is the surface area?

• 120 square feet

• 110 square feet

• 79 square feet

• 94 square feet

How do you adjust the surface area calculation for a container missing one face?

• Add the area of the missing face

• Subtract the area of the missing face

• No adjustment needed

• Double the remaining faces

How does the missing top affect the surface area calculation of the fish tank?

• Increases the total surface area

• Doubles the surface area

• Reduces the total surface area

• Has no effect on the surface area

What is the surface area of a garden fence that is 6 feet long, 3 feet wide, and 1 foot high, missing the top and bottom?

• 36 square feet

• 24 square feet

• 30 square feet

• 18 square feet

Why is the surface area of the garden fence only 18 square feet?

• Because it lacks a top and bottom

• Because it is fully enclosed

• Because it uses a different material

• Because it is circular

What would be the surface area of a fully enclosed box with the same dimensions as the garden fence?

• 24 square feet

• 18 square feet

• 30 square feet

• 36 square feet

What is the primary consideration when calculating the surface area of real-world objects?

• Considering missing faces

• Always using the highest dimensions

• Calculating only the visible areas

• Ignoring any openings

In the context of the video, what practical application was demonstrated for surface area calculations?

• Designing a poster

• Painting a house

• Building a skyscraper

• Wrapping a box, building a fish tank, and constructing a garden fence