Similar Figures and Proportions

The polygons in each pair are similar. Find the scale factor of the smaller figure to the larger

figure.

• a

• b

• c

• d

If two triangles are similar their angles are______.

• proportional

• congruent

• supplementary

• complementary

• BM

• MA

• BC

• AD

• BC

• AC

• MD

• MC

A telephone booth that is 8 ft tall casts a shadow that is 4 ft long.  Find the height of a lawn ornament that casts a 2 ft shadow.

• 4 ft

• 2 ft

• 8 ft

• 6ft

If the triangles are similar, state how.

• SSS

• SAS

• AA

• Not similar.

What is the measure of x?

• 12

• 15

• 6

• 9

• 5
• 10
• 12
• 15

State the postulate that proves these triangles are similar.

• SSS

• AA

• SAS

• Not similar