Constructing Perpendicular and Angle Bisectors with Construct Menu
You will see how to use the construct menu of the geometry sticky to quickly construct perpendicular bisectors to segments/sides of polygons, and the angle bisectors of stand-alone angles or angles within an object, like a polygon. You can use the construct hint menu to help by selecting it first, or select your objects and use the narrowed down choices provided based on your object selected.