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Chapter 1: Q20 (page 20)

Complete. m∠2+m∠3=?

Short Answer

Expert verified

The answer is m∠2+m∠3=180°

Step by step solution

01

Step 1. Apply the definition of sum of angles on a straight line

The sum of all angles on a straight line is 180°.

02

Step 2. Description of step

When two lines intersect each other at a point, they formed linear pair of angles. The sum of linear pair of angles is 180°.

03

Step 3. Calculate m∠2+m∠3=m∠?

Here, m∠2and m∠3 linear pair of angles, therefore,

m∠2+m∠3=180°

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