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Honors Geometry > Unit 3 > Flashcards

Unit 3 Flashcards

1
Q

What is does it mean when two angles are perpendicular?

A

They form two right angles

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2
Q

What does an altitude form?

A

An right angle

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3
Q

What is the theorem for an altitude?

A

altitude –> right angles

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4
Q

What is a theorem for two angles being right angles when they are supplemetary?

A

supplementary and congruent –>right angles

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5
Q

what is the theorem for proving something is a median?

A

congruent segments –> median

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6
Q

What is the theorem for a median?

A

median –> congruent segments

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7
Q

What does equidistant mean?

A

The two points are equal distance to one another

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8
Q

What is a perpendicular bisector?

A

a line that bisects and is perpendicular to a segment

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9
Q

What is the theorem for two points being equidistant to each other?

A

congruent –> equidistant

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10
Q

What is a way to prove something is a perpendicular bisector by two points being equidistant to each other? What is the theorem?

A

2 points equidistant –> perpendicular bisector

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11
Q

theorem for a point on a perpendicular bisector

A

point on perpendicular bisector –> congruence

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12
Q

What is a transversal

A

A line that intersects two distinct points

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13
Q

What do a linear pairs form?

A

Supplementary angles

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14
Q

What do a vertical angles form?

A

Congruent angles

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15
Q

What are alternate interior angles?

A

Angles that are on the interior of the two lines and on opposite sides

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16
Q

What are alternate exterior angles?

A

Angles that are on the exterior of the two lines and on opposite sides of the transversal

17
Q

What are corresponding angles?

A

Angles that are on the same side of the transversal and in the same relative position to the two lines

18
Q

What are adjacent angles?

A

Angles that share a side and a vertex

19
Q

When looking at slopes how can you tell if two lines are parallel?

A

They have the same slope

20
Q

How can you tell if two lines are perpendicular when looking at slopes?

A

Slopes are opposite recipricols

21
Q

What is the slope of a horizontal line?

A

0

22
Q

What is the slope of a vertical line?

A

undefined

23
Q

What does every indirect proof start with?

A

The opposite of the conclusion

Honors Geometry (2 decks)

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