Scale Factor

Front

What is a scale factor?

Back

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

Front

If the scale factor is 4, what is the measurement of slide length x if the original length is 5?

Back

20

Front

What is a scaled copy?

Back

Shapes that are the same shape but different sizes.

Front

If a shape has a scale factor of 3, what is the new length of a side that was originally 2 cm?

Back

6 cm

Front

What does a scale of 1 cm : 5 m mean?

Back

1 centimeter on the drawing represents 5 meters in reality.

Front

If the actual width of a soccer field is 54 meters and the scale is 1 cm : 9 m, how wide is the field in the drawing?

Back

6 cm

Front

Which of the following is a scaled copy of figure A? (Assuming figure D is twice the size of figure A)

Back

D

Front

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

Back

Divide the length of a side of the scaled shape by the length of the corresponding side of the original shape.

Front

If a triangle has sides of 3 cm, 4 cm, and 5 cm, what would be the sides of a triangle with a scale factor of 2?

Back

6 cm, 8 cm, and 10 cm.

Front

What happens to the area of a shape when the scale factor is doubled?

Back

The area increases by a factor of four.