# Points, Lines, and Planes Question

**View this question.**

Add this question to a group or test by clicking the appropriate button below.

## Grade 10 Points, Lines, and Planes CCSS: HSG-CO.C.9

Given that [math]k[/math] and [math]m[/math] are parallel, and that line [math]t[/math] is a transversal, prove that [math]ang 1[/math] and [math] ang 6[/math] are supplementary.

[math] " Statement " [/math] | [math] " Reason "[/math] |

[math]1. k " || " m[/math] | [math]1. "Given"[/math] |

[math]2. ang 1 ~= ang 5[/math] | [math]2. "Corresponding angles are congruent"[/math] |

[math]3. m ang 1 = m ang 5 [/math] | [math]3. "Definition of congruent angles"[/math] |

[math]4. m ang 5 + m ang 6 = 180°[/math] | [math]4. [/math] |

[math]5. m ang 1 + m ang 6 = 180°[/math] | [math]5. "Substitution property of equality"[/math] |

[math]6. ang 1 " and " ang 6 " are supplementary" [/math] | [math]6. "Definition of supplementary angles"[/math] |

- Same side interior angles are supplementary
- From the diagram
- Linear pairs of angles are supplementary
- Given