Surface Area of Prism and Pyramid

Salva covered the outside of a gift box shaped like a rectangular prism with paper. The box is 3.2 feet long, 2.1 feet wide, and 2.7 feet high. Which of the following is closest to the total surface area of the box?

• 34 ft²

• 42 ft²

• 30 ft²

• 18 ft²

What 3D solid does this net create?

• Triangular Prism

• Triangular Pyramid

• Rectangular Pyramid

• Square Prism

Which example requires you to find the surface area?

• Finding out how much water will fill a cylinder

• Finding out how much wrapping paper is needed to cover a present

• Finding the amount a container can hold

• Finding out how much wood is needed to build a fence in your back yard.

What is surface area?

• The amount of stuff that can fit in an object.

• A 2D shape.

• A 3D shape.

• The sum of the areas of all the surfaces (faces) of a 3D shape.

Guess the polyhedron. I have 5 flat faces. Two of the faces are triangles and three are rectangles.

• Triangular Prism

• Rectangular Prism

• Triangular Pyramid

• Square Pyramid

Find the surface area of this prism.

• 29 cm2

• 912 cm2

• 348 cm2

• 438 cm2

What is the total surface area of the rectangular pyramid whose net is shown?

• 400 in²

• 800 in²

• 1,200 in²

• 1,600 in²

Find the lateral area and surface area of each figure. Round your answers to the nearest tenth, if necessary.

• 212 ft²; 322 ft²

• 152.6 cm²; 187.7 cm²

• 219.6 in²; 313.2 in²

• 50.4 in²; 66.4 in²

Find the surface area.

• 12 m²

• 16 m²

• 24 m²

• 20 m²

What is the total surface area of the rectangular prism?

• 160 cm²

• 208 cm²

• 72 cm²

• 52 cm²