The goal is to be to create a triangle and adjust the angles with the Slider tool. See below for activities and directions.[br][br]DIRECTIONS:[br][br]1. Create a Segment AB.[br][br]2. Under [b]MEASURE TOOLS[/b], choose the [color=#38761d]Slider tool[/color], then a location for it.[br][br]3. A box will open up. Select [color=#38761d]Angle;[/color] set min at [color=#38761d]0 [/color]degrees, set max at [color=#38761d]90 [/color]degrees, set increment at [color=#38761d]1[/color]. Slider   should be named [math]\alpha[/math] = 45 degrees. [br][br]4. Under [b]MEASURE TOOLS[/b], select [color=#38761d]Angle with Given Size[/color]. Then click point [color=#38761d]B [/color]and then point [color=#38761d]A [/color]. (angle at A).[br][br]5. After box opens up, replace 45 degrees with [math]\alpha[/math] . May have to activate the keyboard in the Steps menu.[br][br]6. Construct a ray AB'. [br][br]7. Using the Move tool, adjust the slider which will change the angle of A.