Triangles Unit Review

Triangles Unit Review

Types of Triangles

• Isosceles - 2 equal sides

• Equilateral - 3 equal sides

• Scalene - no equal sides

• Right - has a right angle

Multiple Choice

Based on the side lengths of this triangle, what classification would it belong to?

• Scalene

• Isosceles

• Equilateral

Multiple Choice

Based on the angle measures of this triangle, what classification would it belong to?

• Right Triangle

• Acute Triangle

• Obtuse Triangle

Multiple Choice

Based on the side lengths of this triangle, what classification would it belong to?

• Scalene

• Isosceles

• Equilateral

Multiple Choice

Based on the side lengths of this triangle, what classification would it belong to?

• Scalene

• Isosceles

• Equilateral

Sum of Angles in a Triangle

The three angles in a triangle always add up to exactly 180 degrees.

Multiple Choice

Find the measure of the indicated angle.

• 95

• 85

• 35

• 45

Multiple Choice

Find the measure of each angle indicated.

• 139°

• 66°

• 138°

• 116°

Multiple Choice

• 47

• 57

• 53

• 133

Multiple Choice

Solve for x.

• 16
• 11
• 50
• 6

Isosceles Triangles Base Angles Theorem and Converse

Multiple Choice

Which pair of sides is congruent?

• AC and BC

• AC and AB

• AB and BC

• none of them

Multiple Choice

Which pair of angles is congruent?

• <A and <B

• <A and <C

• <B and <C

• none of them

Fill in the Blank

m<1=?

Multiple Choice

Which equation would you use to determine what x is?

• $7x-10=15x-35$

• $15x-35=3x+6$

• $7x-10=3x+6$

Triangle Congruence Theorems

• SSS

• SAS

• ASA

• AAS

• HL (right triangles only)

• More information needed: AAA

• More information needed: SSA

Multiple Choice

Which of the following cannot be used to prove triangles congruent?

• HL
• AAA
• SSS
• SAS

Multiple Choice

Which postulate can we use to prove the two triangles are congruent?

• SAS

• SSA

• ASA

• AAS

Multiple Choice

Which triangle congruence theorem can be used to prove the triangles are congruent?

• SAS
• SSS
• ASA
• HL

Multiple Choice

Which triangle congruence theorem can be used to prove the triangles are congruent?

• HL
• SSA
• SAS
• AAS

Multiple Choice

Which triangle congruence proves triangle ABC congruent triangle XYZ?

• ASA

• not enough information

• AAA

• SSS

Multiple Choice

Which triangle congruence theorem can be used to prove the triangles are congruent?

• ASA
• SAS
• AAS
• Not enough information

Multiple Choice

Which triangle congruence theorem can be used to prove the triangles are congruent?

• SSS
• ASA
• AAS
• SAS

Corresponding Parts of Congruent Triangles

are also congruent.

Multiple Choice

Shapes that are the same shape and the same size are ________.

• similar
• unique
• congruent
• corresponding

Multiple Choice

Complete the congruence statement.

• OEG
• OGE
• EGO
• GOE

Multiple Choice

Choose the correct item to make the congruence statement true.

• A
• B
• C
• D

Multiple Choice

Which is the correct congruency statement based on the diagram?

• △ABC ≅ △FED

• △EFD ≅ △CBA

• △BCA ≅ △EFD

• △DFE ≅ △ABC

Multiple Choice

Complete the congruence statement $\angle E\cong?$  

•  $\angle I$  

•  $\angle J$  

•  $\angle K$  

Multiple Choice

 ∠A = ≅

• ∠M
• ∠N
• ∠L

Multiple Choice

What is the correct congruence statement?  ΔDEC ≅________

• ΔAEB
• ΔEAB
• ΔBEA
• Not Congruent

Pythagorean Theorem

Right Triangles ONLY!

Multiple Choice

What is the longest side of a right triangle called?

• A. Leg A
• B. Leg B
• C. Hypotenuse
• D. Pythagorean Theorem

Multiple Choice

_{^{Find the missing side}}

• 9
• 41
• 6.4
• 3

Multiple Choice

_{^{Find the missing side}}

• 29.2
• 20
• 400
• 10

Multiple Choice

• The top of the ladder is 8.9 ft from the ground
• The top of the ladder is 9.2 ft from the ground
• The top of the ladder is 16.5 ft from the ground
• The top o the ladder is 14.4 ft from the ground

Multiple Choice

What is the diagonal length of the iPad?

• 9.2 in
• 11 in
• 13 in
• 9.6 in

Multiple Choice

A rectangular field is 50 yards wide and 100 yards long. Patrick walks diagonally across the field. How far does he walk?

• 111.8 yards
• 115 yards
• 127.3 yards
• 119 yards

Poll

How prepared do you feel for the test next class?