In the app below,[br][list=1][*]Construct a circle using the CIRCLE tool [icon]/images/ggb/toolbar/mode_circle2.png[/icon]. [/*][*]Use the POINT ON OBJECT tool [icon]/images/ggb/toolbar/mode_pointonobject.png[/icon] to plot 2 additional points that lie on this circle. [/*][*]Use the POLYGON tool [icon]/images/ggb/toolbar/mode_polygon.png[/icon] to construct a polygon whose vertices are the circle's center and the two points you just constructed in step (2) above. [/*][/list]
4. Select the MOVE tool [icon]https://www.geogebra.org/images/ggb/toolbar/mode_move.png[/icon] now and move the vertices of this triangle around. [br][b]How would you classify this triangle by its sides? [br]Why would you classify it this way?[/b]
[size=150]5. Select the ANGLE [icon]https://www.geogebra.org/images/ggb/toolbar/mode_angle.png[/icon] tool to find and display the measures of all 3 angles of this triangle. [br]What do you notice? (Be sure to select the MOVE [icon]/images/ggb/toolbar/mode_move.png[/icon] tool again so you can keep dragging the triangle's vertices around.) [/size][br]