Geogebra is an online tool that we can use to help us with Geometry.
Here are a few different shapes made in Geogebra. Move the points that are blue around, and see what happens.
Geogebra allows us to create geometric shapes, measure them, and manipulate them.[br][br]Start by hovering over each tool in the toolbar and see what options you have available to you. [br]Then, try to follow the directions in the make lines section below.
[list=1][*]Make a [u]line[/u] that goes through points A and B.[br][/*][*]Make a [u]segment[/u] that goes through points C and D.[/*][*]Make a [u]ray[/u] that starts at E and passes through F.[/*][/list]
Make a circle in three different ways.[br][list=1][*]Make a circle with a centre that goes through a point.[/*][*]Make a circle with a centre and a radius of 2.[/*][*]Make a circle that goes through three points.[/*][/list]
Select the Distance or Length tool.[br][br]Now click on the point A, and then B.
Below are points A, B and C. Find [math]\angle[/math]ABC with the Angle tool by clicking A, B then C.
Using the various tools we've already explored (and more if you want), try to make a self portrait like the example below!