Surface Area of Triangular Prisms

The video tutorial teaches students how to find the surface area of triangular prisms. It begins with a review of calculating the area of a triangle and then introduces the formula for the surface area of triangular prisms. The teacher explains how to break down the prism into its components and calculate the area of each part. An example calculation is provided, followed by an alternative method for finding the surface area. Students are given a practice problem to solve independently, and the lesson concludes with a homework assignment.

What is the formula for finding the area of a triangle?

• Base times height

• Side times side

• Length times width

• Base times height divided by two

When calculating the surface area of a triangular prism, why can we skip dividing by two for the triangles?

• Because the triangles are identical

• Because the triangles are different

• Because the triangles are rectangles

• Because the triangles are squares

How do you determine the length of the rectangle in a triangular prism?

• Add the sides of the triangle

• Subtract the base from the height

• Multiply the base by the height

• Divide the base by the height

What is the capital 'H' used for in the formula for the surface area of a triangular prism?

• The length of the base

• The height of the prism

• The height of the triangle

• The width of the rectangle

In the example problem, what is the result of 5 times 4 plus 15 times 10?

• 150

• 180

• 170

• 200

What is the surface area of a triangular prism with a base of 5, height of 4, and sides of 5, 5, and 5?

• 160 cm²

• 180 cm²

• 170 cm²

• 150 cm²

In the final example, what is the sum of the sides 5, 13, and 12?

• 40

• 35

• 30

• 25

What is the surface area of a triangular prism with a base of 12, height of 5, and sides of 5, 13, and 12?

• 160 inches²

• 150 inches²

• 170 inches²

• 180 inches²

What should you do after solving a surface area problem?

• Box your answer

• Erase your work

• Recalculate everything

• Ignore the result

What is the homework assignment related to the surface area of triangular prisms?

• Solve four problems

• Solve five problems

• Solve three problems

• Solve two problems