Geometry

Geometry Regents Topics Explained

Triangles

  • Right Angled Triangles
  • Interactive Triangles

Quadrilaterals

  • Rectangle
  • Rhombus
  • Square
  • Parallelogram
  • Trapezoid

Calculating Perimeter

  • Perimeter of a Circle
  • Perimeter of a Square
  • Perimeter of a Triangle
  • Perimeter of Polygon

Calculating Area

  • Area of a Circle
  • Area of a Square
  • Area of a Triangle
  • Area of Polygon

Polygons

  • Pentagon
    • Properties of Regular Polygons
  • Pentagram
  • Hexagon
  • Diagonals of Polygons

Circles

  • Circle
  • Pi
  • Annulus

Angles

  • Acute Angle
  • Right Angle
  • Obtuse Angle
  • Reflex Angle
  • Straight Angle
  • Full Rotation

Symmetry & Transformations

  • Rotation
  • Reflection
  • Translation
  • Resizing
  • Point Symmetry
  • Lines of Symmetry of Plane Shapes