Scale factor

• March 13th 2013, 06:02 PM
chels2000
Scale factor
Luanne made a photocopy of a drawing of a rectangle. The original drawing was 4.5 inches wide and 6 inches long. The copy was 6.75 inches wide and 9 inches long. What was the scale factor for Luanne's copy?

A) 1.5

B) 2

C) 2.25

D) 3

HELP ME!!!
• March 13th 2013, 06:20 PM
Shakarri
Re: Scale factor
$scale factor=\frac{final\,size}{original\, size}$