1 / 7

Measuring Lengths & Angles

Measuring Lengths & Angles. Measure of Segment AB. The length of AB is the absolute value of a-b. |a-b| or |b-a|. A. B. a. b. Congruence. Objects that are congruent have the same measure. Segment Addition Postulate. If point R is between points P and Q, then RP + PQ = PQ. P. R.

haruko
Download Presentation

Measuring Lengths & 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. Measuring Lengths & Angles

  2. Measure of Segment AB The length of AB is the absolute value of a-b. |a-b| or |b-a| A B a b

  3. Congruence • Objects that are congruent have the same measure

  4. Segment Addition Postulate If point R is between points P and Q, then RP + PQ = PQ P R Q

  5. Angle Measure (using a protractor) • Line up site with vertex • Line up one side with 0° • Read angle measure using other side

  6. Angle Addition Postulate If point S is in the interior of <PQR, then m<PQS + m<SQR = m<PQR P S Q R

  7. Special Angle Sums If the sum of the measures of two angle = • 90° => Complementary • 180° => Supplementary

More Related