7th Grade Unit 1 Review: Scale Drawing

Front

If the scale factor is less than one, the new figure will be...

Back

a reduction

Front

What is the scale factor?

Back

The scale factor is the ratio of the dimensions of the model to the dimensions of the actual object.

Front

From Denver to Chicago = 3 in. If the scale is 1 in = 300 miles, find the actual distance.

Back

900 miles

Front

Is Figure B a scaled copy of Figure A?

Back

Yes

Front

A model of a house was built using the scale 5 in:25 ft. If a window in the model is 1.5 in. wide, how wide is the actual window?

Back

7.5 ft

Front

What does a scale drawing represent?

Back

A scale drawing represents an object or place with accurate proportions reduced or enlarged by a certain factor.

Front

How do you calculate the actual distance using a scale?

Back

Multiply the measurement on the drawing by the scale factor.

Front

What is an enlargement in scale drawing?

Back

An enlargement is when the scale factor is greater than one, making the new figure larger than the original.

Front

What is a reduction in scale drawing?

Back

A reduction is when the scale factor is less than one, making the new figure smaller than the original.

Front

If a scale factor is 1/4, what does it mean?

Back

It means the new figure is one-fourth the size of the original figure.