Chapter 2 Review. Conditional statements have a IF and a THEN. 2 Hypothesis Conclusion.

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Chapter 2 Review

Transcript of Chapter 2 Review. Conditional statements have a IF and a THEN. 2 Hypothesis Conclusion.

Page 1: Chapter 2 Review. Conditional statements have a IF and a THEN. 2 Hypothesis Conclusion.

Chapter 2 Review

Page 2: Chapter 2 Review. Conditional statements have a IF and a THEN. 2 Hypothesis Conclusion.

Conditional statements have a IF and a THEN.

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Hypothesis Conclusion

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If you are in Mrs. Buric’s Geometry class, then you love Math!

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Hypothesis: you are in Mrs. Buric’s Geometry class

Conclusion: you love Math

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ConverseA converse is a statement that

switches the hypothesis and the conclusion.

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Converse

If you love Math, then you are in Mrs. Buric’s Geometry class!

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CounterexamplesAn example that with given the

hypothesis makes the conclusion false

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Counterexample

If you can fly, then you are a bird.

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Insects

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A biconditional is a statement where the conditional and the converse are both true!

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“p if and only if q” (biconditional)

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Example: Conditional: An angle is right if it

measures 90 degrees.

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Converse: An angle measures 90 degrees if it is a right angle.

TRUE!

TRUE!

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Complementary angles

• Add up to 90 degrees

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Supplementary angles

• Add up to 180 degrees

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Perpendicular Lines are two lines that intersect to form right angles (90 degrees).

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Addition Property

If a = b and c = d, then a + c = b + d

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Subtraction Property

If a = b and c = d, then a - c = b - d

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Multiplication Property

If a = b, then ac = bc

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Division Property

If a = b and c 0, then a/c = b/c

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Substitution PropertyIf a = b,

Then either a or b may be substituted for the other

in any equation or inequality

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Reflexive Property

a = a

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Symmetric Property

If a = b, Then b = a

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Transitive Property

If a = b and b =c, Then a = c

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Distributive Property

a(b + c) =ab +ac

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Reflexive Property DE DE<D <D

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Transitive Property If DE FG and FG JK

then DE JK

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Theorem

If two lines are perpendicular, then they form congruent adjacent angles.

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Theorem

If the exterior sides of two adjacent acute angles are perpendicular, then the angles are complementary.

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Theorem

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

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Theorem

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

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Homework

Pg 626 1-11 ALL

PG 6271-11 ALL