HSG-CO.D.12

Make formal geometric constructions with a variety of tools and methods (compass and straightedge, string, reflective devices, paper folding, dynamic geometric software, etc.). Copying a segment; copying an angle; bisecting a segment; bisecting an angle; constructing perpendicular lines, including the perpendicular bisector of a line segment; and constructing a line parallel to a given line through a point not on the line.

Tasks

Reflected Triangles
Locating Warehouse
Construction of perpendicular bisector
Bisecting an angle
Angle bisection and midpoints of line segments
Origami equilateral triangle
Origami regular octagon
Origami Silver Rectangle