Learning Target I can use proportional reasoning to solve scale
drawing problems.
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The scale factor tells you how many times bigger than normal
that something really is.
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proportional scale unit rate numerator What is the scale
factor?
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The length of the highway is 600 miles. If 2 inches represent
75 miles, what is the length of the highway on the map? 1.
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The height of a building is 480 feet. On a drawing of the
building, 1/2 inch represents 24 feet, what is the height of
building on the drawing? 2.
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A map has a scale of 2 in = 35 miles. If the distance between
Troy City and Ben City is really 315 miles, how far apart are they
on the map? 3.
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On the same map with scale 2 in = 35 miles, Marking City and
Jamming City are 5 inches apart. How many miles apart are they?
4.
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5. A blueprint of a house has a scale of 1/2 in : 6 ft. The
living room has dimensions of 18 ft by 24 feet. What are the
dimensions on the blueprint of the living room?
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6. A 120-ft long playground is just 15 in. on the scale
drawing. What is the scale on the scale drawing? (what does 1 inch
= ?)
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7. The scale on a map is in : 18 mi. The state capital is 252
miles from the border. How far is the state capital from the border
on the map?
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8. A model length of 12 cm. represents an actual length of 102
ft. What is the scale for the model? (what does 1 cm = ?)
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Summary Table Discussion: The scale in the drawing is 2 in: 4
ft. What are the dimensions of the actual room? 14 inches 7
inches
