Angles

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Introduction

     Geometry deals with the study of shape, size, position and other properties of objects in a plane or in space.

Angles and Types of Angles

     When two straight lines meet at a common point, they form an angle.

Theorem1

     If a straight line meets another straight line, the adjacent angles so formed are supplementary.

Theorem2 (Converse of Theorem 1)

     If two adjacent angles are supplementary, then their exterior arms lie in a straight line.

Summary

     When a pair of angles are adjacent and also supplementary, they are said to form a linear pair.

Question and Answers

Question and Answers 1

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