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Study the Example showing how to find an actual
area from a scale drawing. Then solve problems 1-4.
Example
A camping supply store uses a tent as its logo.
The store makes a sign with the logo on it. The scale
from the actual logo to the logo on the sign is 1 in.
to 2 ft. What is the area of the logo on the sign?
You can use the scale factor to find the
actual dimensions. The scale factor from
the logo to the sign is, or 2.
The area of the logo on the sign is 4.5 ft².
A = 1/2 bh
1.5 in.
1.5 in.
= (1.5 × 2)(1.5 × 2)
= 4.5
Employees of the store in the Example wear shirts with the logo on the back. The
scale from the original logo in inches to the shirt in inches is 1:8. What is the area
of the logo on their shirts? Show your work.
