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What is a radian

👉 Learn about angles in trigonometry. An angle is the figure formed by two rays sharing the same endpoint. The two rays are called the sides of the angle while the common endpoint of the two rays is called the vertex of the angle. Angle is measured in radians or in degrees. The radian is the measure of the length of an arc of a unit circle or the measure of the radius of the circle on the circumference of the circle. pi radians is equivalent to 180 degrees. One complete revolution about a point is equivalent to 2pi radians and 360 degrees. A plane is usually divided into 4 equal parts called the quadrants. The angle measured in the anti-clockwise direction is called a positive angle while a negative angle is measured in the clockwise direction. We measure angles starting from the positive x-axis. 👏SUBSCRIBE to my channel here: https://www.youtube.com/user/mrbrianm... ❤️Support my channel by becoming a member:    / @brianmclogan   🙋‍♂️Have questions? Ask here: https://forms.gle/dfR9HbCu6qpWbJdo7 🎉Follow the Community:    / mrbrianmclogan   Organized Videos: ✅ Angles in Trigonometry    • Angles in Trigonometry   ✅ Solve Problems with Arc Length    • Solve Problems with Arc Length   ✅ Angles in Trigonometry | Learn about    • Angles in Trigonometry | Learn about   ✅ Sketch Angles in Standard Position    • Sketch Angles in Standard Position   ✅ Find the Quadrant of the Angle    • Find the Quadrant of the Angle   ✅ Find the Reference Angle    • Find the Reference Angle   ✅ Complement and Supplement of an Angle    • Complement and Supplement of an Angle   ✅ Convert Radians to Degrees    • Convert Radians to Degrees   ✅ Convert Degrees to Radians    • Convert Degrees to Radians   ✅ Convert Degrees to Degree Minute Seconds    • Convert Degrees to Degree Minute Seconds   ✅ Convert Degree Minute Seconds to Degrees    • Convert Degree Minute Seconds to Degrees   ✅ Coterminal Angles | Learn About    • Coterminal Angles | Learn About   ✅ Find Coterminal Angles | 0 and 2pi    • Find Coterminal Angles | 0 and 2pi   ✅ Find Coterminal Angles | 0 and 360    • Find Coterminal Angles | 0 and 360   🗂️ Organized playlists by classes here:    / mrbrianmclogan   🌐 My Website - http://www.freemathvideos.com 🎯Survive Math Class Checklist: Ten Steps to a Better Year: https://www.brianmclogan.com/email-ca... Connect with me: ⚡️Facebook -   / freemathvideos   ⚡️Instagram -   / brianmclogan   ⚡️Twitter -   / mrbrianmclogan   ⚡️Linkedin -   / brian-mclogan-16b43623   👨‍🏫 Current Courses on Udemy: https://www.udemy.com/user/brianmclog... 👨‍👩‍👧‍👧 About Me: I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips. Find more here: https://www.freemathvideos.com/about-me/ #trigonometry #brianmclogan