## Math Facts

Among all shapes with the same perimeter, a circle has the largest area.

Also, among all shapes with the same area, a circle has the shortest perimeter.

## Geometry Sections

Basics of GeometryReasoning and Proofs

Parallel and Perpendicular Lines

Transformations

Congruent Triangles

Relationships Within Triangles

Quadrilaterals and Other Polygons

Similarity

Right Triangles and Trigonometry

Circles

Circumference, Perimeter, and Area

Surface Area and Volume