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Calculating Surface Area of Cylinders | Step-by-Step Guide

Learn how to find the surface area of cylinders, including vocabulary, formulas, and practical examples. Practice exercises included for better understanding.

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Calculating Surface Area of Cylinders | Step-by-Step Guide

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  1. Lesson 12-5Pages 538-541 Surface Area of Cylinders

  2. What you will learn! How to find the surface area of cylinders.

  3. Vocabulary

  4. What you really need to know! The surface area S of a cylinder with height h and radius r is the sum of the areas of the circular bases and the area of the curved surface.

  5. What you really need to know!

  6. Example 1: Find the surface area of the cylinder. Round to the nearest tenth.

  7. Example 2: A poster is contained in a cardboard cylinder that is 10 inches high. The cylinder’s base has a diameter of 8 inches. How much paper is needed to wrap the cardboard cylinder if the ends are to be left uncovered?

  8. Diameter = 8 inches, then the radius = 4 inches. Height = 10 inches.

  9. Page 539 Guided Practice #’s 3-5

  10. Read: Pages 538-539 with someone at home and study examples!

  11. Homework: Page 540-541 #’s 6-19 all #’s 22-31 all

  12. Page 595 Lesson 12-5

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