1 / 8

Angles

Angles. ( def ) An ACUTE ANGLE is an angle w/ a MEASURE less than 90° ( def ) A Right angle is an angle w/ a MEASURE = 90° ( def ) An Obtuse angle is an angle w/ a MEASURE greater than 90 ° but less than 180 °. ( def ) A Straight angle is an angle w/ a MEASURE = 180°

caleb-mays
Download Presentation

Angles

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Angles (def) An ACUTE ANGLE is an angle w/ a MEASURE less than 90°(def) ARight angle is an angle w/ a MEASURE = 90°(def) An Obtuse angle is an angle w/ a MEASURE greater than 90° but less than 180 °.(def) A Straight angle is an angle w/ a MEASURE = 180° Interior of angle Exterior of angle

  2. To Name an Angle- either use 3 letters or number it, never use only 1 letter unless there is only one angle with that vertex. If you use three letters, the vertex must be the middle letter. A or never use in this type of problem since more than one angle has a vertex of B. D 1 E B

  3. (def)Adjacent Angles are 2 coplanar angles that share a common ray and vertex but no common interior pts. (def)An Angle Bisectoris a ray that divides an angle into 2 congruent angles. A D C B

  4. Angle Addition Postulate- If D is in the interior of , then i.e. The sum of the parts = whole A D C B

  5. (def) Supplementary angles are 2 angles whose measures have a sum of 180° or 145° 35°

  6. (def)Complementary angles are 2 angles whose measures have a sum of 90° or 50° 40°

  7. (def) Linear Pair angles are 2 adjacent angles whose non-common sides form a line. Linear Pair Theorem- If 2 angles form a linear pair, then they are supplementary.

  8. (def) Vertical Angles are 2 nonadjacent angles formed by intersecting lines 1 4 2 3 Vertical Angles Theorem- If 2 angles are vertical angles, then they are congruent.

More Related