Proving Triangle Similar

Are the triangles similar? If so, what is the ratio of the sides?

• Not similar

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

• equal

• congruent

• proportional

• none of these

If two figures are similar their angles are______.

• proportional

• congruent

• supplementary

• complementary

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

Do one of these similarity reasons prove the triangles are similar?

• AA

• SAS

• SSS

• Not similar

Do one of these similarity reasons prove the triangles are similar?

• AA

• SAS

• SSS

• Not similar

Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.

• SSS

• AA

• SAS

• not similar

Use the information in the diagram to determine the height of the tree. The height of the tree is ______ feet

Lance the alien is 5 feet tall.  His shadow is 8 feet long.  At the same time of day, a tree's shadow is 32 feet long.  What is the height of the tree? The height of the tree is ______ feet.

The triangles are similar by...

• SAS

• AA

• ASA

• SSS