Surface Area
Grade 9•45 minutes
Learning Objective
I can calculate the surface area of three-dimensional figures, including prisms and cylinders, using appropriate formulas.
Practice Questions
This lesson includes 7 practice questions to reinforce learning.
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1. Explain in your own words why the formula for the circumference of a circle (2πr) is used in the surface area formula for a cylinder.
2. A cylinder has a radius of 5 cm and a height of 10 cm. Calculate its surface area. Show your work.
3. A cylindrical storage tank needs to be painted. The tank is 12 meters high and has a diameter of 8 meters. How much surface area needs to be painted?
...and 4 more questions
Educational Video
How to Find the Surface Area of a Cylinder | Math with Mr. J
Math with Mr. J