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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 24 Page 429

A linear pair is a pair of angles with a common side.

See solution.

Practice makes perfect

A linear pair is a pair of adjacent angles whose noncommon sides are opposite rays. Below, we can see that ∠ 1 is created by the blue rays and ∠ 3 is created by the green rays.

Therefore, ∠ 1 and ∠ 3 cannot be a linear pair because they do not share a common side. In fact, they are vertical angles.

Subchapter links

Communicate Your Answer p.423

Monitoring Progress p.425-427

Exercises p.428-430