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- RATIO :
- a:b = a ÷ b = a/b
- MAP SCALES :
- 1 : r : 1cm on the map is = r in the land
- 1 : r² : 1cm² on the map is = r² in the land
- DIRECT PROPORTION :
- y is directly proportional to x : y = kx
jul 21 2020 ∞
jul 21 2020 +
jul 21 2020 +