Scale drawings: find the length on the drawing
Divide the real length by what one centimetre stands for.
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A drawing uses the scale 1 cm : 7 m. A real wall is 28 m long. How long is it on the drawing, in cm?
Answer: 4
A drawing uses the scale 1 cm : 2 m. A real wall is 22 m long. How long is it on the drawing, in cm?
Answer: 11
A drawing uses the scale 1 cm : 3 m. A real wall is 30 m long. How long is it on the drawing, in cm?
Answer: 10
Tip: Divide the real length by what one centimetre stands for.
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- Next in this topic Find the scale factor of a copy Grade 7
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