Find drawing lengths and the scale of a drawing
7th grade (Year 8 in England) · 16 questions · Common Core: 7.G.A.1 · England: KS3 Ratio, proportion and rates of change, KS3 Geometry and measures
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Question 1
A model uses 1 cm for every 10 m. A real bridge is 40 m long. How long is it on the model, in cm?
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Question 2
On a drawing with scale 1 cm : 4 m, a path is 18 cm long. The drawing is redrawn with scale 1 cm : 8 m. How long is the path on the new drawing, in cm?
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Question 3
A 10 m long room is drawn 10 cm long on a plan. The scale is 1 : n. What is n?
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Question 4
A model uses 1 cm for every 10 m. A real bridge is 40 m long. How long is it on the model, in cm?
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Question 5
On a drawing with scale 1 cm : 5 m, a path is 32 cm long. The drawing is redrawn with scale 1 cm : 20 m. How long is the path on the new drawing, in cm?
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Question 6
A 1.8 m long room is drawn 9 cm long on a plan. The scale is 1 : n. What is n?
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Question 7
A model uses 1 cm for every 5 m. A real bridge is 30 m long. How long is it on the model, in cm?
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Question 8
On a drawing with scale 1 cm : 2 m, a path is 4 cm long. The drawing is redrawn with scale 1 cm : 4 m. How long is the path on the new drawing, in cm?
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Question 9
A 11 m long room is drawn 11 cm long on a plan. The scale is 1 : n. What is n?
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Question 10
A model uses 1 cm for every 2 m. A real bridge is 8 m long. How long is it on the model, in cm?
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Question 11
On a drawing with scale 1 cm : 2 m, a path is 12 cm long. The drawing is redrawn with scale 1 cm : 4 m. How long is the path on the new drawing, in cm?
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Question 12
A 18 m long room is drawn 9 cm long on a plan. The scale is 1 : n. What is n?
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Question 13
A model uses 1 cm for every 2 m. A real bridge is 14 m long. How long is it on the model, in cm?
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Question 14
On a drawing with scale 1 cm : 5 m, a path is 15 cm long. The drawing is redrawn with scale 1 cm : 15 m. How long is the path on the new drawing, in cm?
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Question 15
A 14 m long room is drawn 7 cm long on a plan. The scale is 1 : n. What is n?
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Question 16
A model uses 1 cm for every 2 m. A real bridge is 18 m long. How long is it on the model, in cm?
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