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130_G6U10_G6U18_WB˙—» ¿º 2011.3.25 7:6 PM ˘ ` 2

130-B2-1

Surface Area of Cylinders (2)

1. Find the area of the base and side, and then find the surface area.

Example

4 cm

10 cm

a. 3 in. b. 2 ft
12 in. 5 ft

(area of base) about (in.2) (area of base) about (ft2)
(area of side) about (in.2) (area of side) about (ft2)
(surface area) about (in.2) (surface area) about (ft2)

c. 5 m d. 15 yd
10 yd
9m

(area of base) about (m2) (area of base) about (yd2)
(area of side) about (m2) (area of side) about (yd2)
(surface area) about (m2) (surface area) about (yd2)