Nets (Part 2) (Use a net to find the surface area of a solid formed by rectangles and triangles)

The video tutorial explains how to calculate the surface area of a triangular prism using its net. It begins by describing the dimensions of the prism and its net, which consists of three rectangles and two equilateral triangles. The tutorial then details the process of calculating the area of the triangles using the formula for the area of a triangle. Next, it explains how to find the area of the rectangles. Finally, the video demonstrates how to sum these areas to find the total surface area of the prism, concluding with a recap of the lesson's key points.

What are the dimensions of the triangular prism mentioned in the video?

• Length: 7, Width: 4, Height: 5

• Length: 4, Width: 5, Height: 7

• Length: 5, Width: 7, Height: 4

• Length: 7, Width: 5, Height: 4

What is the formula used to calculate the area of an equilateral triangle?

• Base plus height divided by 2

• Base plus height

• Base times height divided by 2

• Base times height

How much area does each equilateral triangle cover?

• 5 square feet

• 20 square feet

• 15 square feet

• 10 square feet

What is the area of each rectangle in the net of the triangular prism?

• 25 square feet

• 40 square feet

• 35 square feet

• 30 square feet

What is the total surface area of the triangular prism?

• 125 square feet

• 120 square feet

• 110 square feet

• 100 square feet