Free geometry lessons

A great variety of free geometry lessons along with geometry worksheets and calculators. First start studying the prerequisites.

What we want to achieve with these geometry lessons


  • Identify basic shapes in geometry
  • Find perimeter and area of shapes
  • Find volume and surface area of solids
  • Learn about congruency
  • Find and graph the slope
  • Find the standard from of a line
  • Explore some important proofs in geometry
  • And more!

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Geometric formulas

Tough algebra word problems

100 Tough Algebra Word Problems.

If you can solve these problems with no help, you must be a genius!

Math quizzes