Copy an angle:[br]1)Using the segment tool, create an angle with segments AB and AC where A is the vertex[br]2) Next to or below angle ABC, create a segment DE(this should be longer than AC).[br]3) Use the compass tool (red circle), select segment AC, then click point A. [br]4) Click the new circle formed, then click point D to copy the circle to segment DE.[br]5)Add point F to the intersection of your circle and segment DE[br]6) Now on the original angle, create a circle using the compass tool, with a center of C and a radius of CB.  (Click the compass tool, click C, then click B, a circle will appear.)  [br]7) Click on the newly created circle, then click center F. That circle will intersect with the circle you created earlier.  Click the point tool and click the intersection of these two circles, it will be named G[br]8) Now create a line segment from D to the intersection point G.  You have now copied angle BAC to angle GDE