What is a Radian?

In this applet, you will explore a radian.

1. Use the slider to change the angle. How many radians are there in a full circle? 2. Does changing the radius (r) affect how many radians there are in a circle?

New Resources

Circles - Relative Positions
Average Distance
Level Curves
Quiz: Vertical Angles and Linear Pairs
Drunk Parabola

Discover Resources

Area of a Square and the Ratio of its Radii
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Quad Deriv
Fonctions affines- Coefficient directeur
Exponential Function

Discover Topics

Linear Equations
Orthocenter
Hypothesis Testing
Statistical Characteristics
Symmetry