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130_G6U10_G6U18_WB˙—» ¿º 2011.3.25 7:6 PM ˘ ` 18
130-P3-1
Surface Area and Volume of Rotated Figure
The rectangle is rotated about its length to make a solid figure. Find the surface
area of the solid figure.
5 cm
12 cm
Step 1. Draw the solid figure that is made when the rectangle is rotated once.
5 cm
12 cm
Step 2. Find the area of the base and the area of the side.
(area of base) (cm2)
(area of side) (cm2)
Step 3. Find the surface area of the solid figure.
130-P3-1
Surface Area and Volume of Rotated Figure
The rectangle is rotated about its length to make a solid figure. Find the surface
area of the solid figure.
5 cm
12 cm
Step 1. Draw the solid figure that is made when the rectangle is rotated once.
5 cm
12 cm
Step 2. Find the area of the base and the area of the side.
(area of base) (cm2)
(area of side) (cm2)
Step 3. Find the surface area of the solid figure.
