Fundamentals

Test your basic knowledge about geometry. We all need some refreshment every now and then. You think you remember everything about geometry. You may be wrong ... Test your knowledge please.

Some essential definitions in geometry

Good to know historical information about geometry

Geometry is based on three undefined words: point, line, and plane

Answer some questions about lines, segments and rays

Rays cross each other to form angles

How to use protractor to measure angles

You can use the algebra concept of variable and equation to solve many types of geometry problems. Take the quiz to learn more.

How can you identify two vertical angles? Take the quiz to learn it

Solve problems involving complementary and supplementary angles

These are some fundamental vocabulary questions in geometry

Take this exercise quiz and learn some essential concepts in geometry

A short and important exercise to review the fundamental notations in geometry

Some guided practice questions to refresh your skills

More questions about the main fundamentals in geometry

Real-life problems that geometry solves