Dilations and Similarity

What is the value of X?

• X=4

• X=6

• X=3

• X=2

Are the triangles similar?

• Yes

• No

Are the triangles similar?

• Yes

• No

When you dilate a figure you...

• slide it.

• turn it.

• flip it.

• make it larger or smaller.

The pair of figures is similar. Find the missing side.

• x = 9

• x = 28

• x = 7

• x = 63

Tell whether the two figures are congruent.

• Yes, same size and same shape

• No, same shape but different sizes

• No, different size and different shapes

Tell whether the two figures are congruent.

• Yes, same size and same shape

• No, same shape but different sizes

• No, different size and different shapes

The polygons are similar. Find x.

• x = 2

• x = 6

• x = 4 

• x = 8

Find x

• 21

• 27/7

• 13

• 18

What is the value of X and Y ?

• X=2.5 and Y=6.5

• X=6.5 and Y=2.5

• X=3 and Y=7

• X=2 and Y= 5