Calculating Surface Area of a Triangular Prism

This video tutorial by Mr. J explains how to calculate the surface area of a triangular prism. It covers the concept of surface area, the process of calculating the area of the triangular bases and rectangular faces, and visualizing the net of the prism. The tutorial concludes with a recap of the steps involved in finding the total surface area.

What is the definition of surface area in the context of 3D figures?

• The perimeter of the figure's base

• The volume inside the figure

• The area of the figure's base

• The area of all the outer faces of the figure

How many faces does a triangular prism have?

• 6

• 5

• 4

• 3

What formula is used to calculate the area of a triangle?

• Length x Width

• Pi x Radius squared

• Base x Height

• 1/2 Base x Height

If one of the triangular bases has a base of 6 inches and a height of 4 inches, what is its area?

• 12 square inches

• 8 square inches

• 24 square inches

• 48 square inches

Why do we multiply the area of one triangular base by two when calculating the surface area of a triangular prism?

• Because the prism has two bases

• To double the total surface area

• Because it's a requirement for all prisms

• To account for the height of the prism

What is the area of a rectangle with a length of 7 inches and a width of 6 inches?

• 48 square inches

• 13 square inches

• 42 square inches

• 36 square inches

How do you calculate the area of the rectangular faces of a triangular prism?

• 1/2 Base x Height for each rectangle

• Base x Height for each rectangle

• Pi x Radius squared for each rectangle

• Length x Width for each rectangle

What is the purpose of unfolding a 3D shape into a net?

• To calculate the perimeter of the base

• To determine the shape's density

• To make it easier to visualize and calculate the areas of the faces

• To find the volume of the shape

If the right rectangle has a length of 7 inches and a width of 5 inches, what is its area?

• 35 square inches

• 40 square inches

• 12 square inches

• 25 square inches

What is the total surface area of the triangular prism if the areas of the bases and rectangles are known?

• Difference of the areas of all faces

• Average of the areas of all faces

• Product of the areas of all faces

• Sum of the areas of all faces