Use the Compass Tool to make a circle with a center at A and a radius the length of AB.[br][br][b]Step 1:[/b] Click the compass tool at the top.[br][b]Step 2: [/b]Click Point A.[br][b]Step 3: [/b]Click Point B.[br][b]Step 4: [/b]Move the mouse, and the mouse is now the center of the circle.[br][b]Step 5: [/b]Click Point A to place the circle you made there.

[b]Step 1: [/b]Use the compass to create a circle with a center at Point A and a radius the length of Segment AB.[br][b]Step 2: [/b]Move the circle down to Point C, creating a circle with a center at Point C.[br][b]Step 3: [/b]Place a new Point D, anywhere on Circle C.[br][b]Step 4: [/b]Construct a segment from Point C to Point D.[br][b]Step 5: [/b]Use the measurement tool to confirm that Segment CD is the same length as Segment AB.

[b]Step 1: [/b]Use the segment tool to create segment DE that doesn't intersect with Angle CAB. [br][b]Step 2: [/b]Use the point tool to mark point F anywhere on segment AB.[br][b]Step 3: [/b]Use the compass tool to create a circle with radius AF and center point A.[br][b]Step 4: [/b]Use the compass tool to create a congruent circle (with radius AF) centered at point D.[br][color=#ff0000]If your second circle intersects the original angle or the first circle, you can use the move tool to adjust points D or F.[/color][br][b]Step 5: [/b]Use the point tool to mark point G where circle A intersects segment AC. [br][b]Step 6: [/b]Use the point tool to mark point H where circle D intersects segment DE.[br][b]Step 7: [/b]Use the compass tool to create a circle with radius FG and center point F.[br][b]Step 8: [/b]Use the compass tool to create a congruent circle (with radius FG) centered at point H.[br][b]Step 9: [/b]Mark point I where circles D and H intersect.[br][b]Step 10: [/b]Use the segment tool to draw segment DI.[br][b]Step 11: [/b]Use the angle tool to measure the original angle and the constructed angle.

[b]Step 1: [/b]Use the compass to create a circle with a radius the length of AC and a center at Point A.[br][b]Step 2: [/b]Use the compass to create a circle with a radius the length of AC and a center at Point B.[br][b]Step 3: [/b]Use the intersection tool to mark the intersection points of Circle A and Circle B.[br][list][*]Move your mouse to Circle A and it will become bold, click it, and then do the same to Circle B and then the intersection points will appear.[br][/*][/list][b]Step 4: [/b]Use the line creator tool to draw a line through points D and E.[br][b]Step 5: [/b]Use the angle measure tool to confirm that line DE and Segment AB are in fact perpendicular.[br][list][*]Click Line DE and then click Segment AB and the angle tool will measure the angle between the two lines.[/*][/list][b]Step 6[/b]: Use the intersection tool to mark Point F as the intersection of line DE and Segment AB.[br][list][*]Click Line DE and click Segment AB and the point of intersection will appear as Point F.[/*][/list][b]Step 7: [/b]Use the measurement tool to confirm that Segment AF and Segment FB are congruent.

[b]Step 1:[/b] Using the point tool, mark point D on segment AB.[br][b]Step 2:[/b] Using the compass tool, create a circle with radius AD and center point A.[br][b]Step 3: [/b]Using the point tool, mark point E where circle A intersects segment AC.[br][b]Step 4: [/b]Using the compass tool, create a circle with the radius DE and center point D.[br][b]Step 5:[/b] Using the compass tool, create a circle with the radius DE and center point E.[br][b]Step 6: [/b]Using the segment tool, draw a segment from point A to the intersection of circles D and E.