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

Constructing the Perpendicular Line Through a Point on the Line
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以百分數比較兩個數值
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VIDEO: How to Insert Image in GeoGebra

Discover Resources

Translation Animation 2
lines
tll 2009 nshs isosceles with straight edge and compass
Edges are aMazing
Latihan 3-2

Discover Topics

Natural Numbers
Pie Chart or Circle Chart
Function Graph
Sequences and Series
Coordinates