Branches

Geometry

Angles, areas, volumes, transformations, triangles, circles and coordinates · 56 lessons

Topics

Angles

Angle relationships, triangles, polygon angle sums · 3 lessons

Area

Parallelograms, triangles, polygons · 2 lessons

Scale drawings

Scales, maps, scaled copies · 2 lessons

Constructions

Compass and straightedge · 1 lesson

Transformations

Translations, reflections, rotations, symmetry · 5 lessons

Congruence

Triangle criteria, isosceles triangles, proofs · 5 lessons

Similarity

Dilations, scale factors, similar triangles · 5 lessons

The Pythagorean theorem

The theorem, its converse and applications · 2 lessons

Triangle trigonometry

Sine, cosine, tangent; laws of sines and cosines · 8 lessons

Coordinate geometry

Distance, midpoint, parallel and perpendicular lines · 5 lessons

Circles

Circumference, area, angles, arcs and sectors · 6 lessons

Solids and volume

Cross sections, volume, surface area · 6 lessons

Conic sections

Circles, parabolas, ellipses, hyperbolas · 6 lessons