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The scale is 3 cm : 3 m = 3 cm : 300 cm = 1:100

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Q: What is the scale if a house plan shows a wall 3cm long but is actually 3m long?
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What is the scale of a house plan shows a wall 3cm long but is actually 3m long?

The idea is to divide 3m / 3 cm. Convert everything to the same unit first. ********************* As 1cm on the plan represents 100cm on the ground, the scale is 1:100 (one to one hundred).


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