Geometry the easy way

Building a geometry vocabulary

Measure and congruence

Angle pairs and perpendicular lines

Parallel lines

Angles of a polygon

Proving triangles are congruent

Applying congruent triangles

Transformation geometry

Ratio, proportion, and similarity

The right triangle

Geometric inequalities, indirect proof, and concurrencies

Special quadrilaterals

Circles and angle measurement

Chord, tangent, and secant segments

Area and volume

Coordinate geometry.