What Are The Different Types Of Angles Angle: Two rays with a common end point form an angle. OA, OB are rays & O is end point. Types of AnglesIn geometry, angles can be classified according to the size (or magnitude) of the angle.Right angle: An angle whose measure is 90°, is called a right angle. Two lines that meet at a right angle are said to be … [Read more...] about What Are The Different Types Of Angles
Lines and Angles
Vertically Opposite Angles
Vertically Opposite Angles Two angles are called a pair of vertically opposite angles, if their arms form two pairs of opposite rays. Let two lines AB and CD intersect at a point O. Then, two pairs of vertically opposite angles are formed. (i) ∠AOC and ∠BOD (ii) ∠AOD and ∠BOCTheorem 1: If two lines intersect then the vertically opposite angles are … [Read more...] about Vertically Opposite Angles
Linear Pair Of Angles
Linear Pair Of Angles Two adjacent angles are said to form a linear pair of angles, if their non-common arms are two opposite rays.In the adjoining figure, ∠AOC and ∠BOC are two adjacent angles whose non-common arms OA and OB are two opposite rays, i.e., BOA is a line ∴ ∠AOC and ∠BOC form a linear pair of angles.Theorem 1: Prove that the sum of all the angles formed … [Read more...] about Linear Pair Of Angles