Regents Geometry Flashcards

1
Q

Tangents are congruent when (given no outside information)

A

They are drawn from the same external point.

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2
Q

Secant-secant rule

A

Exsec x sec = exsec2 x sec

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3
Q

Tangent-tangent angle

A

Half the difference of arcs

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4
Q

Internal tangents exist when

A

The area inside two circles share less than epsilon.

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5
Q

The segments of two intersecting chords

A

A x b = c x d

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6
Q

Inscribed angle of an arc measures

A

Half the measure of the intercepted arc.

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7
Q

Chord-chord angle

A

Half the sum of arcs

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8
Q

Define circumcenter.

A

Point of concurrence of the perpendicular bisectors.

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9
Q

Inverse of a conditional

A

A-)b–):a-):b

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10
Q

Secant-tangent rule

A

Exsec x sec : tan!2

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11
Q

Define incenter.

A

Point of concurrence of angle bisectors.

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12
Q

H, L combinations

A

Congruence

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13
Q

Tangent-secant angle

A

Half the difference of arcs.

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14
Q

Define centroid.

A

Point of concurrence of the medians.

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15
Q

ASA

A

Congruence

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16
Q

Define orthocenter.

A

Point of concurrence of altitudes.

17
Q

SAS

A

Congruence

18
Q

Tangent-chord angle

A

Half the intercepted arc

19
Q

SSA

A

Hoax

20
Q

Given circumcenter M, centroid B, and orthocenter G, what is the correct distance and order of the Euler line?

A

MB-2-G

21
Q

SSS postulate

A

Congruence

22
Q

Converse of a conditional

A

A-)b–)b-)a

23
Q

Contrapositive of a conditional

A

A-)b–):b-):a

24
Q

AAA

A

Similarity

25
Q

AAS

A

Congruence

26
Q

Similarity

A

SAS