Dorchester2-01-31-2025 Review Similar Triangles

​I can find the sample space is a list of all possible outcomes in a situation. Simple probability tells us how likely something is to happen.

​Take out your Notes, please

Open Ended

Which one doesn't belong?

A B C D

Similar Triangles -same shape
-different size

Similarity Conditions

​Angle Angle

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Side-Angle-Side​

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Side-Side-Side​

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If you have 2 angles that are the same, triangles are similar.

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If you have 2 sides that are PROPORTIONAL and the angle between them is congruent, triangles are similar.​

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If you have 3 sides that are proportional, triangles are similar.​

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Multiple Choice

The triangles are similar by...

• SAS
• AA
• ASA
• SSS

Multiple Choice

Find the scale factor of the dilation with center C. Then describe the kind of dilation

• 2/5; reduction

• 5/2; enlargement

• 2/3; reduction

• 3/2; enlargement

Multiple Choice

Find y.

• 27

• 42

• 12

• y cannot be determined.

Multiple Choice

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

• x = 1
• x = 3
• x = 9
• x = 5

Multiple Choice

What theorem tells you the triangles are similar?

Cual teorema se dice que los triángulos son similares?

• SSS LLL

• SAS LAL

• AA

• Not Similar No Similar

Multiple Choice

The triangles are similar by...

• SAS
• AA
• ASA
• SSS

Multiple Choice

What theorem tells you the triangles are similar?

Cual teorema se dice que los triángulos son similares?

• SSS LLL

• SAS LAL

• AA

• Not Similar No Similar

Multiple Choice

Are these triangles similar?
Angles in Triangle 1:  40⁰,60⁰, and 80⁰
Angles in Triangle 2:  40⁰,50⁰, and 90⁰

• Yes
• No
• There is not enough information to decide.

Multiple Choice

What theorem tells you the triangles are similar?

Cual teorema se dice que los triángulos son similares?

• SSS LLL

• SAS LAL

• AA

• Not Similar No Similar

Multiple Choice

If the triangles are similar, state how.

• SSS
• SAS
• AA
• Not similar.

Multiple Choice

What theorem tells you the triangles are Similar?

Cual teorema se dice que los triángulos son similares?

• SSS LLL

• SAS LAL

• AA

• Not Similar No Similar

Multiple Choice

Tell whether the triangles are similar or not.

• a

• b

Multiple Choice

What theorem tells you the triangles are similar?

Cual teorema se dice que los triángulos son similares?

• SSS LLL

• SAS LAL

• AA

• Not Similar No Similar

Multiple Choice

Tell whether the triangles are similar or not.

• a

• b

Multiple Choice

Are the triangles similar? If so, by what theorem?

Esos triángulos son similares? Si así, con cual teorema?

• SSS LLL

• SAS LAL

• AA

• Not Similar No Similar

Multiple Choice

Find the missing side using proportions.

• a

• b

• c

• d

Multiple Choice

Are the triangles similar? If so, by what theorem? Esos triángulos son similares? Si así, con cual teorema?

• SSS LLL

• SAS LAL

• AA

• Not Similar No Similar

Multiple Choice

Find the missing side using proportions.

• a

• b

• c

• d

Multiple Choice

Are the triangles similar? If so, by what theorem?

Esos triángulos son similares? Si así, con cual teorema?

• SSS SSS

• SAS LAL

• AA

• Not Similar No Similar

Multiple Choice

Find the missing side using proportions.

• a

• b

• c

• d

Multiple Choice

Are the triangles similar? If so, by what theorem?

Esos triángulos son similares? Si así, con cual teorema?

• SSS LLL

• SAS LAL

• AA

• Not Similar No Similar

Multiple Choice

Find the missing side using proportions.

• a

• b

• c

• d

Multiple Choice

Are the triangles similar? If so, by what theorem?

Esos triángulos son similares? Si así, con cual teorema?

• SSS LLL

• SAS LAL

• AA

• Not Similar No Similar

Multiple Choice

Are these two triangles similar? If so, how?

• Yes, AA ∼

• Yes, SAS ∼

• Yes, SSS ∼

• No

Multiple Choice

Are these two triangles similar? If so, write a similarity statement.

• Yes; ΔUGA ≅ ΔBEF

• Yes; ΔUGA ≅ ΔFEB

• Yes; ΔUGA ≅ ΔFBE

• No

Multiple Choice

Are these two triangles similar? If so, how?

• Yes, AA ∼

• Yes, SAS ∼

• Yes, SSS ∼

• No

Multiple Choice

Which is NOT true about similar triangles.

• The angles in the triangles are congruent to each other.
• The sides are proportional to each other.
• The angles in each triangle add up to 180^o.
• The triangles must have at least one side that is the same length.

Multiple Choice

If the triangles are similar, state how.

• SSS
• SAS
• AA
• Not similar

Multiple Choice

What is the similarity statement for the triangle pair?

• ΔXYZ~ΔNEW
• ΔXZY~ΔNWE
• ΔZYX~ΔENW
• ΔYZX~ΔNWE

Multiple Choice

If two figures are similar their angles are______.

• proportional
• congruent
• supplementary
• complementary

Multiple Choice

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

• equal
• congruent
• proportional
• none of these

Multiple Choice

Which is not a similar triangle theorem?

• AA∼
• SAS∼
• SSS∼
• HL∼

Multiple Choice

Who is the New England football team?

• The Giants
• The Jets
• The Panthers
• The Patriots