Unit 1 Scale Drawings Review

Front

A map says that 2 in represents 16 miles. What is the distance on the map (in inches) that represents the actual distance of 40 miles?

Back

5 inches

Front

Scale factor is _________.

Back

the number you multiply the original shape by in order to get the scale copy.

Front

Jamie made a scale drawing of his apartment building. The building is 300 ft tall. He wants his scale to be 1 to 120. How tall should his building be in his scale drawing?

Back

30 inches

Front

A flagpole is 1 in = 4 ft. If the pole measures 12 inches, how tall is the actual pole?

Back

48 feet

Front

A scale drawing of a backyard uses a scale of 1 in = 7 ft. If the actual width of the backyard is 49 ft, how wide is the backyard in the drawing?

Back

7 in

Front

What is a scale drawing?

Back

A representation of an object that is proportional to its actual size.

Front

If a scale factor is 1:50, what does this mean?

Back

1 unit on the drawing represents 50 units in reality.

Front

How do you calculate the actual size from a scale drawing?

Back

Multiply the size on the drawing by the scale factor.

Front

What is the purpose of using scale in drawings?

Back

To accurately represent large objects in a manageable size.

Front

If a model car is 1:24 scale, how long is the actual car if the model is 10 inches long?

Back

20 feet.