5.1 Angles of Triangles

​5.1 Angles of Triangles

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"The only place where success comes before work is in the dictionary.

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​-Unknown

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Fill in the Blanks

Fill in the Blanks

Multiple Choice

Solve for x.

HINT!!! THE SUM OF THE ANGLES EQUALS 180 DEGREES. #8

• 8

• -10

• -7

• 6

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Multiple Choice

Which of the following terms best describes Angle d? #9

• Remote interior angle

• Corresponding angle

• Exterior angle

• Interior angle

Multiple Choice

Find the measure of the indicated angle.

HINT!!! USE EXTERIOR ANGLE THEOREM ANGLE 1 INSIDE + ANGLE 2 INSIDE = EXTERIOR ANGLE OUTSIDE. #5

• 89

• 211

• 119

• 81

Fill in the Blanks

Multiple Choice

Find the measure of the indicated angle. #12

• 40

• 108

• 72

• 68

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Multiple Choice

Fill in statement #3. #32

• $$m\angle7=m\angle2$$

• $$m\angle1=m\angle6$$

• $$m\angle1=m\angle3$$

• $$m\angle4=m\angle5$$

Multiple Choice

Fill in reason #3. #33

• $$\parallel\rightarrow$$  corresponding angles are  $$\cong$$  

• Substitution Property

• $$\parallel\rightarrow$$  alternate interior angles are  $$\cong$$  

• Transitive Property