The links below lead to instructional videos for each construction:
2. Constructing a 90° Angle (or, constructing a perpendicular line through a point on the line):
3. Bisecting an Angle(helpful when constructing 30° angles, 45° angles, etc., since these angles are half of the angles we worked with earlier)
4. Constructing a Parallel Line Through a Point
5. Constructing a Perpendicular Line Through a Point Off the Line
Click here for written instructions pertaining to the five constructions listed above.