# Lesson 8 2 B Surface area of cylinder

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Information about Lesson 8 2 B Surface area of cylinder
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Published on February 3, 2009

Author: coliver2

Source: authorstream.com

Slide 1: Surface Area of a Cylinder Parts of a Cylinder : The radius of the cylinder is the radius of the base. The height of the cylinder is the perpendicular distance between the bases. Parts of a Cylinder Height h base radius base Lateral surface Slide 3: Surface area = 2 (area of base) + (circumference of base) (height) Symbols S = 2 B + Ch = 2 p r² + 2 prh B = p r² C = 2 p r How to find the surface area of a cylinder? r h Slide 4: Example Problem 3 ft. 4 ft. Find the surface area of the cylinder. Round your answer to the nearest whole number. Solution: S= 2 p r² + 2 pr h = 2 p (3)² + 2 p (3)(4) = 18 p + 24 p = 42 p = 132 The surface area is about 132 square feet. Slide 5: Practice Problems Find surface area of the following cylinders. Round answer to nearest whole number 10 ft. 12 ft. 1. 2. 3 in. 5 in. 3. 2m 1 m

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