Lesson 15: More Nets, More Surface Area | Unit 1: Area and Surface Area

Multiple Choice

Which polyhedron can be assembled from this net?

• Tetrahedron
• Dodecahedron
• Cube
• Octahedron

Multiple Choice

What mistake did Jada make in calculating the area of the shapes?

• Jada miscalculated the area by using incorrect dimensions.
• Jada added the areas of the shapes instead of multiplying them.
• Jada used the correct dimensions but forgot to multiply by the scale factor.
• Jada calculated the perimeter instead of the area.

Open Ended

Find the surface area of the polyhedron. Show your reasoning.

Open Ended

A cereal box is 8 inches by 2 inches by 12 inches. What is its surface area? Show your reasoning. If you get stuck, consider drawing a sketch of the box or its net and labeling the edges with their measurements.

Draw

Label all edges in the net of polyhedron A with the correct lengths.

Draw

Label all edges in the net of polyhedron B with the correct lengths.

Draw

Draw a net for this rectangular prism.

Multiple Choice

What is the surface area of the rectangular prism with dimensions 2 cm, 5 cm, and 10 cm?

• 200 cm²
• 120 cm²
• 50 cm²
• 160 cm²

Multiple Choice

What is the surface area of this triangular prism? All measurements are in meters.

• Surface area = 2 * Area of Triangle + Perimeter of Triangle * Height (specific values needed for calculation)
• Surface area = Area of Rectangle + Height
• Surface area = 3 * Area of Triangle + Base * Height
• Surface area = Base Area + Height

Open Ended

A drama club is building a wooden stage in the shape of a trapezoidal prism. The height of the stage is 2 feet. Some measurements of the stage are shown here. What is the area of all the faces of the stage, excluding the bottom? Show your reasoning. If you get stuck, consider drawing a net of the prism.