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Chapter 1: Q20 (page 20)

Complete. m鈭�2+m鈭�3=?

Short Answer

Expert verified

The answer is m鈭�2+m鈭�3=180掳

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掳.

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掳.

03

Step 3. Calculate m鈭�2+m鈭�3=m鈭�?

Here, m鈭�2and m鈭�3 linear pair of angles, therefore,

m鈭�2+m鈭�3=180掳

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Most popular questions from this chapter

A plane can be named by three or more non-collinear points it contains. In chapter 12 you will study pyramids like the one shown at the right below.

Name two planes that intersect in ST鈫�.

Sketch and label the figures described. Use dashes for hidden parts.

A vertical plane intersects two horizontal planes in lines I and n.

For the following figure, find the coordinate of p and R.

Classify the statement as true or false.

intersects plane M at point O.

Name a fourth point that is in the same plane as the given points.

D, C, H
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