Deck of vocab and theorems used in proofs
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Addition Property of Equality | show 🗑
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| show | If a = b, then a – c = b – c
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| Multiplication Property of Equality | show 🗑
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| show | If a = b and c ≠ 0, then a ÷ c = b ÷ c
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| show | a (b + c) = ab + ac
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| show | If a = b, then b may be substituted for a in any expression containing a
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| Commutative Property | show 🗑
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| show | (a + b) + c = a + (b + c) (a • b) • c = a • (b • c)
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| show | a = a ∠A ≅ ∠A AB ≅ AB
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| show | If a = b, then b = a If ∠A ≅ ∠B, then ∠B ≅ ∠A
If AB ≅ CD, then CD ≅ AB
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| show | If a = b and b = c, then a = c
If ∠A ≅ ∠B and ∠B ≅ ∠C, then ∠A ≅ ∠C
If AB ≅ CD and CD ≅ EF, then AB ≅ EF
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| Definition of Congruence | show 🗑
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| Definition of Right Angle | show 🗑
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| show | The point that divides a line segment into 2 congruent segments.
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| show | A ray that divides an angle into 2 congruent angles.
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| Definition of Complementary Angles | show 🗑
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| show | Two angles whose measures sum to 180˚.
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| Definition of Linear Pair | show 🗑
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| Definition of Vertical Angles | show 🗑
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| Angle Addition Postulate | show 🗑
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| show | If B is a point on the segment AC, then
AB + BC = AC
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| Linear Pair Postulate | show 🗑
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| straight Angle Postulate | show 🗑
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| show | If two angles are vertical angles, then they are congruent.
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| Same-Side Interior Angles | show 🗑
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| Alternate Interior Angles | show 🗑
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| show | A pair of angles on opposite sides of the transversal and outside the lines
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| show | A pair of angles in matching positions. For example, both could be on the left side of the transversal and above the line.
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Created by:
states_l
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