Surface Areas of Prisms and Cylinders

A classroom, in the shape of a rectangular prism, has two walls that are each 20 feet long, and two walls that are 25 feet long. The height, from the floor to the ceiling, is 9 feet. You need to paint the walls of the room with two coats of paint. How much area will you paint, after applying BOTH coats of paint?

• 810 ft²

• 1620 ft²

• 1310 ft²

• 1360 ft²

Find the total surface area of the cylinder.

• 100.53 square inches

• 351.86 square inches

• 251.33 square inches

• 50.27 square inches

Find the surface area

• 60.4 m²

• 188.4 m²

• 94.2 m²

• 881.9 m²

Find the Surface Area

• 556 cm²

• 278 cm²

• 680 cm²

• 340 cm²

Find the surface area of this figure.

• 148 cm²

• 120 cm²

What is the surface area formula for a cylinder?

• SA = πrl + πr²

• SA = 2πrh + 2πr²

• SA = 4πr²

• SA = πr²h

Find the surface area of the rectangular prism with the following dimensions: 
length = 9 m
height = 10 m
width = 12 m

• 630 m squared

• 636 m squared

• 710 m squared

• 1080 m squared

What shape is this?

• Cylinder

• Rectangular Prism

• Cube

• Cone

Find the surface area of the triangular prism.

• 356 in²

• 348 in²

• 336 in²

• 340 in²

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.