TEKS.MATH.9-12.III.D.1

A triangle's angles add up to...

• 90 Degrees
• 180 Degrees
• 360 Degrees
• OVER 9000 Degrees

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TEKS.MATH.9-12.III.D.1

Find the m∠3

• 28
• 152
• 180
• 62

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TEKS.MATH.9-12.III.D.1

If <1 and <2 are complementary, then m<1 + m<2 = 90

• Addition POE
• Subtraction POE
• Def of right angle
• Def of Complementary Angles

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TEKS.MATH.9-12.III.D.1

Diagonals of a parallelogram are congruent

• always true
• sometimes true
• never true 

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TEKS.MATH.9-12.III.D.1

Angles x and y are...

• alternative interior
• alternate exterior
• corresponding
• same-side interior

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TEKS.MATH.9-12.III.D.1

What is the measure of ∠PTQ?

• 100°
• 140°
• 180°
• 120°

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TEKS.MATH.9-12.III.D.1

Line segment AB is shown in the diagram. Which two sets of construction marks, labeled I, II , III, and IV,are part of the construction of the perpendicular bisector of line segment AB?

• I and II
• I and III
• II and III
• II and IV

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TEKS.MATH.9-12.III.D.1

What is m∠ABD

• 80
• 120
• 20
• 100

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TEKS.MATH.9-12.III.D.1

What is x?

• 35
• 45
• 55
• 90

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TEKS.MATH.9-12.III.D.1

What is the sum of the interior angles of an octogon?

• 900°

• 1080°

• 1260°

• 1440°

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TEKS.MATH.9-12.III.D.1