The original drawing uses 1 cm = 4 ft and measures 5 cm by 6 cm. Reproduce it using 1 cm = 8 ft. What should the new drawing dimensions be?
Show reasoning / computation: __________________________________________
CCSS 7.G.A.1 · reproduce drawings at a different scale
Students first recover the actual dimensions represented by the original drawing, then rebuild the drawing under a new scale. This prevents the common error of multiplying by the new scale without preserving the real object.
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Diagrams are part of the problem data, not decorative assets. Student pages keep solution-specific marks hidden; reveal answers or use the separate PDF key to check work.
Problem 1
The original drawing uses 1 cm = 4 ft and measures 5 cm by 6 cm. Reproduce it using 1 cm = 8 ft. What should the new drawing dimensions be?
Show reasoning / computation: __________________________________________
Problem 2
The original drawing uses 1 cm = 4 ft and measures 7 cm by 5 cm. Reproduce it using 1 cm = 8 ft. What should the new drawing dimensions be?
Show reasoning / computation: __________________________________________
Problem 3
The original drawing uses 1 cm = 2 ft and measures 7 cm by 5 cm. Reproduce it using 1 cm = 4 ft. What should the new drawing dimensions be?
Show reasoning / computation: __________________________________________
Problem 4
The original drawing uses 1 cm = 3 ft and measures 3 cm by 4 cm. Reproduce it using 1 cm = 6 ft. What should the new drawing dimensions be?
Show reasoning / computation: __________________________________________
Problem 5
The original drawing uses 1 cm = 4 ft and measures 3 cm by 4 cm. Reproduce it using 1 cm = 8 ft. What should the new drawing dimensions be?
Show reasoning / computation: __________________________________________
Problem 6
The original drawing uses 1 cm = 4 ft and measures 7 cm by 5 cm. Reproduce it using 1 cm = 2 ft. What should the new drawing dimensions be?
Show reasoning / computation: __________________________________________
Problem 7
The original drawing uses 1 cm = 3 ft and measures 8 cm by 5 cm. Reproduce it using 1 cm = 6 ft. What should the new drawing dimensions be?
Show reasoning / computation: __________________________________________
Problem 8
The original drawing uses 1 cm = 4 ft and measures 3 cm by 4 cm. Reproduce it using 1 cm = 2 ft. What should the new drawing dimensions be?
Show reasoning / computation: __________________________________________
The real object stays the same when the drawing scale changes.
A larger real-units-per-centimeter scale produces a smaller drawing of the same object.
Check the new dimensions by converting them back to actual size.
Continue the 7.G progression
No. Seeds can require either enlargement or reduction depending on the old and new scales.
The worksheet gives a source diagram and space/dimensions for a new reproduction; the answer key gives the correct new dimensions.