Unit 1 Similar Figures and Dilations Review

Front

What is the scale factor if the point (8, 12) is dilated to (2, 3)?

Back

1/4

Front

Two objects that have the same shape but not the same size are called _______.

Back

Similar

Front

Two figures are ___ if they are the same size and have the same shape.

Back

Congruent

Front

What is the image of point B (-10,-6) under a dilation with center at the origin and scale factor k = 1/2?

Back

(-5,-3)

Front

Are these figures similar? Why or why not?

Back

No, their corresponding sides are not proportional.

Front

Define 'similar figures'.

Back

Figures that have the same shape but different sizes.

Front

What does 'dilation' mean in geometry?

Back

A transformation that changes the size of a figure but not its shape.

Front

What is the relationship between corresponding sides of similar figures?

Back

They are proportional.

Front

If a triangle has sides of lengths 3, 4, and 5, what are the lengths of the sides of a similar triangle with a scale factor of 2?

Back

6, 8, and 10.

Front

What is the scale factor if a figure is enlarged from a size of 5 to a size of 20?

Back

4