Mathematics
Grade 8
45 min
Scale drawings and scale factors
Tutorial Preview
1
A map scale is 1 cm : 4 km. A road is 3 cm long on the map. What is the actual length?
2
A building is 50 feet tall. On a blueprint, the scale is 1 inch : 10 feet. How tall is it on the blueprint?
3
A model car is 5 inches long. The real car is 150 inches long. What is the scale factor?
Sample Practice Questions
Easy
A map's scale is 1 inch : 10 miles. A river is 5 inches long on the map. What is the river's actual length?
0.5 miles
1.10 miles
2.50 miles
3.100 miles
Easy
A blueprint scale is 1 cm : 2 m. A wall is 12 m long. How long is the wall on the blueprint?
0.2 cm
1.6 cm
2.12 cm
3.24 cm
Easy
A toy boat is 4 inches long. The real boat is 40 inches long. What is the scale factor?
0.1/4
1.1/10
2.1/20
3.1/40
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