Scale Factor

Front

What is the scale factor?

Back

The scale factor is the number you multiply by the sides of a figure to create a similar figure.

Tags

CCSS.7.G.A.1

Front

If the original length is 12 units and the scale factor is 1/4, what is the size of the scale drawing?

Back

3 units.

Tags

CCSS.7.G.A.1

Front

Which side corresponds to side FE in a scale drawing?

Back

ML.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

What is the relationship between corresponding sides in similar figures?

Back

Corresponding sides are proportional in length.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

If a rectangle has a length of 20 units and a scale factor of 1/2, what is the new length?

Back

10 units.

Tags

CCSS.7.G.A.1

Front

What do you call the sides of similar figures that are in the same ratio?

Back

Corresponding sides.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

If the scale factor is greater than 1, what happens to the size of the figure?

Back

The figure enlarges.

Tags

CCSS.8.G.A.3

Front

If the scale factor is less than 1, what happens to the size of the figure?

Back

The figure shrinks.

Tags

CCSS.8.G.A.3

Front

What is the scale factor if a rectangle's length changes from 10 units to 5 units?

Back

1/2.

Tags

CCSS.7.G.A.1

Front

How do you find the scale factor between two similar figures?

Back

Divide the length of a side of the new figure by the length of the corresponding side of the original figure.

Tags

CCSS.7.G.A.1