Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# Proofs and Reasons

### math

Question | Answer |
---|---|

adding same number to both sides if 2x=3y, then 2x+1 = 3Y+1 | addition property of equality |

subtracting same number to both sides if 2x=3y, then 2x-1=3y-1 | subtraction property of equaity |

multiplying the same number to both sides if x=y, then 2x=3y | multiplication property of equality |

dividing the same number to both sides if 2=y, then x/2=y/2 | division property of equality |

a number or expression is equal to itself 4x=4x | reflexive property |

can flip flop an equation x+5=10, then 10=x+5 | symmetric property |

two numbers equal to the same 3rd number are also equal to each other if x=6 and y=6, then x=y | transitive property |

if 2 expressions are equal, they can be substituted for each other anywhere if x=4, then 4 can be substituted anywhere x is | substitution property |

segments AB=AB | reflexive property of equality |

<1+<2=90 | definition of complimentary angles |

<1+<2=180 | definition of suplementary anges |

If R is the midpoint of XY, then XR=RY | definition of midpoint |

If P is between A and B, then AP+PB=AB | segment addition postulate |

If AB=CD, then AB{CD | definition of congruent segments |

If ray RA is a bisector of | definition of angle bisector |

<1{<1 | reflexive property of congruence |

If <1=<2, then <2=<1 | symmetric property of equality |

If <2 is a right angle, then <2=90 degrees | definition of a right angle |

If lines m and n are perpendicular, then )1 is a right angle. | definition of perpendicular lines |

If <1+<2=90, then <1 and <2 are complementary. | definition of complementary angles |

If m<1=m<2, then <1{<2. | definition of congruent angles |

If <1=90, then <1 is a right angle. | defintion of right angle |

If <1{<2, then <1=<2. | defintion of congruent angles |

If AB=CD, then AB+RT=CD+RT | addition property of equality |

If <1{<2 and <2{<3, then <1{<3. | transitive property of equality |

If GH=5 and GH+CD=XY, then 5+CD=XY. | substitution property of equality |

If AB=PQ, and PQ+MN, then AB=MN. | transitive property of equality. |

Created by:
msteimer