Similarity Perimeter and Area

Calculate the value of the scale factor between the 2 triangles

• 2.5

• 3

• 3.5

• 4

If two figures are similar, the corresponding sides are ______________.

• equal

• congruent

• proportional

• none of these

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

• reduction

• enlargement

• scale

• not proportional

Are the triangles similar?

• Yes

• No

Triangle PQR is similar to triangle XYZ.  What is the PERIMETER of triangle XYZ?

• 21 cm

• 63 cm

• 105 cm

• 126 cm

Find x

• 21

• 27/7

• 13

• 18

What is the value of X?

• X=4

• X=6

• X=3

• X=2

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

• x = 1

• x = 3

• x = 9

• x = 5

Find the ratio (blue to red) of the area.

• 4/7

• 7/4

• 49/16

• 16/49

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

• Congruent

• Vertical

• Similar

• Complementary