Similar and Congruent Triangles

Two figures that are the same shape, but different sizes are called:

• Similar

• Congruent

• Translations

• Shapes

If the figures shown are congruent, what is the measure of angle y?

• 49.5

• 99

• 63

• 148.5

You can decide if two figures are similar by doing what?

• Adding all the sides

• Making proportions

• Looking closely

• Checking with a friend

The two figures are congruent. What is the measure of angle D?

• 90

• 35

• 55

Are these triangles similar?

• Yes

• No

The triangles are congruent. Which of the following statements must be true?

• ∠A ≅ ∠D

• ∠B ≅ ∠E

• AB ≅ DE

• AB ≅ EF

• A

• B

• C

• D

Which statement about the triangles at the right is true?

• ΔABC is not similar to ΔADF

• ΔABC is similar to ΔADF

• ∠BAC is not congruent to ∠DAF

• ΔABC is congruent to ΔADF

∆JIK ≅

• ∆TRS

• ∆RST

• ∆STR

• ∆TSR

Which congruence statement is correct for this picture?

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