The normal line is a line at a right angle (90 degrees) to the

To draw a normal line to the mirror, you must draw a line at 90 degrees to the surface of the mirror.

Right Angles, Definition and Examples

How to Construct a 90 Degrees Angle Using Compass and Ruler

Refraction Towards the Normal

How to Use Right Triangles to Find the Slope of a Line

Right Angle - Definition, Properties, Shape, Examples

Angles and Triangles

What is flux in physics?

at right angles ( 90 degrees) to segment AC. Place a mirror strip

How to Construct a 90 Degrees Angle Using Compass and Ruler

Lines and Angles - Definitions, Properties, Types, Practice Questions

Lines and Angles - Definitions, Properties, Types, Practice Questions

Normal Line, Definition & Equation - Lesson

Slopes of Perpendicular Lines - Expii