Finding Missing Sides Similar Figures

What scale factor below, would you need to multiply by to find x?

• 4

• 2

• 1/4

• 8

Redraw the two triangles, labeling them with the following dimensions.

(x = 6); (y = 10); (z = 12) & (r = 5)

Find the measure of p using what you know about similar figures.

• 6

• 1 1/5

• 36/5

• 10

The two triangles are similar. Use what you know about similar figures to find side y.

• 6

• 4

• 16

• 10

Find x

• 5

• 20

• 15

• 6

Find x

• 21

• 30

• 18

• 20

Find x

(be careful-be sure to draw them separate and label the side lengths correctly.) *Note the length of PS is 20.

• 3

• 4

• 5

• 6

Find h

• 6

• 2/3

• 3

• 5

The two triangles are similar, find angle V.

• 31

• 117

• 32

• 180

Find x

• 6

• 7.5

• 10

• 12

If the scale factor is 3 from the little shape to the big shape, what would be the scale factor from the big shape to the little shape?

• 3

• 1/3

• 9

• 1/9