Geometry is a branch in mathematics which deals with different angles, shapes, sizes and structures. The following are the most basic and common angles one should know. They are Acute angle, Right angle, Obtuse angle, Reflex angle, Straight angle, and complete angle. An angle is nothing but a geometrical figure that can simply be constructed by joining two rays at their endpoints. Angles are measured in degrees. They form one of the most important parts of geometry in maths. They are essential in the construction of complex geometrical shapes and figures.
Angles are formed when two rays of line inclined to each other combine with a common endpoint. Thus, an angle has two elements. They are the sides and the vertex. The side of an angle is categorized into the terminal sides and the initial sides (which can also be termed as the vertical sides).
Obtuse angle: An obtuse angle can be considered opposite to an acute angle. This angle is capable of lying anywhere between 90 degrees and 180 degrees. In other words, an obtuse angle is larger than 90 degrees and lesser than 180 degrees.
There are two types of angles based on rotation. They are positive and negative angles. The pairs of angles are complementary angles, supplementary angles, adjacent angles, linear pairs and vertically opposite angles.
NEET 2023 Eligibility Criteria
JEE Main 2023 Eligibility Criteria
JEE Advanced 2023 Eligibility Criteria
JEE Advanced 2023 Maths Syllabus
JEE Advanced 2023 Physics Syllabus
JEE Advanced 2023 Chemistry Syllabus
JEE Advanced Registration Dates
CUET 2023 Eligibility Criteria