Page 10 - Math Booklet Prep1first part1_Neat
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Applications of Ratio and Proportion
First: (Drawing scale)
? Drawing scale: is the ratio between drawing length and real length
? drawing scale = drawing length
real length or ( D.S = drawing length : real length)
? Drawing length = drawing scale × real length.
? Real length = drawing length
drawing scale
? Both lengths should have the same units.
? Drawing length photo length or picture length or map length
? Drawing length may be in cm.
? Real length may be in km (distance between two cities) .
meter (building) .
cm (small object) .
mm (insects) .
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