Geometry unit 2.6

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Transcript of Geometry unit 2.6

A theorem - a conjecture or statement that you prove true.

Vertical Angles Theorem Vertical angles are congruent.

1 3

2 4

• What is the value of x?

2x + 21 = 4x21 = 2x10.5 = x

If two angles are supplements of the same angle (or of congruent angles), then the two angles are congruent.

If and are supplements and and are supplements,

then

312 31 2

Congruent Complements Theorem If two angles are complements of the same angle

(or of congruent angles), then the two angles are congruent.

All right angles are congruent.

If two angles are congruent and supplementary, then each is a right angle.

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