Surface Area of Cylinders

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Surface Area of Cylinders
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How would you find the surface area of a cylinder?
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• Steps
• 1. Find the area of the 2 circular bases.
• Find the area of the curved surface
• (actually, a rectangle).
• 3. Add the two areas.
• 4. Label answer.

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(No Transcript)
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Area of Circles 2 ? ( ?r2 )
Area of Curved Surface Circumference ? Height
? ? dh

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Find the surface area of a cylinder whose height
is 14 inches and whose base has a diameter of 16
inches.
Area of Circles 2 ? (?r2) 2 ? (?82)
2 ? (64?) 128? 401.92 in2
Area of Curved Surface Circumference ?
Height ? ? d ? Height
?(16)(14) 224? 703.36 in2
Surface Area 401.92 703.36 1105.28 in2
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45
Find the surface area of a cylinder whose height
is 8 inches and whose base has a diameter of 6
inches.
8
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Find the surface area of a cylinder whose height
is 14 inches and whose base has a diameter of 16
inches.
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How much material is needed to make a cylindrical
orange juice can that is 15 cm high and has a
diameter of 10 cm?
10
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Find the surface area of a cylinder with a height
of 14 inches and a base radius of 8 inches.
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A cylindrical feed tank on a farm needs to be
painted. The tank has a diameter 7.5 feet and a
height of 11 ft. One gallon of paint covers 325
square feet. Do you have enough paint? Explain.
A Yes
B No