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Whiteboardmaths.com © 2004 All rights reserved

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Surface Area of a Cylinder h A cylinder is a prism with a circular cross-section. 2r2r

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Surface Area of a Cylinder A cylinder is a prism with a circular cross- section. r2r2 r2r2 Removing top and bottom Open out 2 r h Surface Area = 2 r rh = 2 r(r + h)

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Surface Area of a Cylinder 8cm Surface area = 2 r(r + h) 3cm Find the surface area of the cylinder. SA = 2 x x 3(3 + 8) = 6 x 11 = 66 = 207 cm 2 (3 sf)

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6 cm The Surface Area of a Cylinder Calculate the surface area of the following cylinders. 15 cm 2.1mm 9.2 mm 3 cm 2 m SA = 2 x x 3(3 + 6) = 6 x 9 = 54 = cm 2 SA = 2 x x 2(2 + 15) = 4 x 17 = 68 = m 2 SA = 2 x x 4.6( ) = 9.2 x 6.7 = mm 2 2 r(r + h)

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The Surface Area of a Cylinder Find the surface area of the cylinder. 2 m 6m

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The Surface Area of a Cylinder Find the surface area of the cylinder. 0.7 m 1.5m

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The Surface Area of a Cylinder Find the surface area of the cylinder. 1.9 m 8m

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The Surface Area of a Cylinder Find the surface area of the cylinder m 1.3m

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