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Why Should You Learn About Planar Figures?
What Are Lines, Line Segments and Rays?
What Are Edges, Vertices and Angles?
What Are Acute, Obtuse and Right Angles?
What Is a Circle?
What Is the Angle Sum of a Triangle?
How Do You Solve Problems to Find Unknown Angles?
What Is the Angle Sum of a Quadrilateral?
What Is a Point and a Line Segment?
How to Construct Two Parallel Lines
Constructing a 60°, 30° or 15° Angle
Constructing a 90°, 45° or 22.5° Angle
Steps to construct a parallel line through a point
What Is a Triangle?
What Are Acute, Obtuse and Right Triangles?
What Is a Quadrilateral?
What Are Trapezoids and Scalene Quadrilaterals?