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

Pitfalls of Disk/Washer Method
Reflection across a line
Using Experimental Probability to Estimate π - Monte Carlo Method
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Discover Resources

Perp Bisector Pizzeria
Identifying Rational vs Irrationals
H Square Const
Sean Urbieta
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Discover Topics

Fractions
Scalene Triangles
Differential Calculus
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Definite Integral