An angle of $90^\circ$ is called a right angle.
The meaning of right angle is $90^\circ$, if any angle is $90^\circ$, the angle is called a right angle.
Right angle is denoted by a symbol $∟$ in mathematics.
A right angle is usually written in three ways in mathematics.
$(1) \,\,\,\,\,\,$ $90^°$ (in Degrees).
$(2) \,\,\,\,\,\,$ $\dfrac{\pi}{2}$ (in Radians)
$(3) \,\,\,\,\,\,$ $100^g$ (in Gradians)
Right angle is formed in two different types in geometric system.
Any angle of a line is generally measured from zero degrees line. If any line is exactly $90^\circ$ to the surface of the earth, the angle made by the line is called a right angle.
$\overrightarrow{RS}$ is a ray and it is initially parallel to the surface of the earth. In other words, it is at zero angle.
The ray $\overrightarrow{RS}$ is rotated an angle of $90^\circ$ in anticlockwise direction to reach its final position where the ray $\overrightarrow{RS}$ is known as $\overrightarrow{RT}$.
The angle made by the ray $\overrightarrow{RS}$ from its initial position to final position is $90^\circ$ and it is denoted by $\angle TRS$.
$\angle TRS = 90^\circ$
The angle $TRS$ is exactly $90^\circ$. Therefore, the angle is called a right angle.
The angle between any two straight lines is measured geometrically by considering one line as baseline to another line and vice-versa to measure the angle. If the angle between them is $90^\circ$, the two lines are perpendicular to each other and the angle made between them is called a right angle.
$\overrightarrow{UV}$ and $\overrightarrow{UW}$ are two rays and they both are started from a point $U$ but they continued travelling perpendicular to each other.
So, the angle between $\overrightarrow{UV}$ and $\overrightarrow{UW}$ is $90^\circ$ and the angle between them is denoted by $\angle VUW$.
$\angle VUW = 90^\circ$
The angle $VUW$ is $90^\circ$, therefore the angle between rays $\overrightarrow{UV}$ and $\overrightarrow{UW}$ is called a right angle.
A best free mathematics education website for students, teachers and researchers.
Learn each topic of the mathematics easily with understandable proofs and visual animation graphics.
Learn how to solve the maths problems in different methods with understandable steps.
Copyright © 2012 - 2022 Math Doubts, All Rights Reserved