Using a Net to Find Surface Area

The video tutorial guides students through solving a standardized math test question on calculating the surface area of a right triangular prism using its net. It explains the identification of the prism's faces, the use of formulas for calculating the area of rectangular and triangular faces, and the process of evaluating answer choices to find the correct solution.

What is the shape of the gift box mentioned in the problem?

• Cube

• Right triangular prism

• Cylinder

• Sphere

Which formula is used to calculate the area of a rectangular face?

• 2πr

• Base times height

• Length times width

• 1/2 base times height

How do you calculate the area of a triangular face?

• Base times height

• 1/2 base times height

• Length times width

• πr²

Which of the following is NOT a correct dimension for the rectangular faces of the prism?

• 5 by 4

• 4 by 4

• 4 by 6

• 4 by 5

What is the correct answer choice for the total surface area of the gift box?

• C

• B

• D

• A