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Big Ideas Math Integrated I, 2016

BI

Big Ideas Math Integrated I, 2016 View details

6. Describing Pairs of Angles

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Exercise 15 Page 428

A linear pair are adjacent angles whose noncommon sides are opposite rays.

∠ 1 and ∠ 5

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A linear pair is a set of adjacent angles whose noncommon sides are opposite rays. This means that the rays point in opposite directions forming a straight line. Examining the figure, we can see that ∠ 2 and ∠ 5 are both adjacent angles to ∠ 1. However, only ∠ 1 and ∠ 5 have noncommon sides that are opposite rays.

Subchapter links

Communicate Your Answer p.423

Monitoring Progress p.425-427

Exercises p.428-430