Mathagon

Learn about trigonometry. Get to know sine, cosine and tangent. See how to use trigonometric formulas and identities to find the size of angles, length of sides or area of triangles.

Online math course in trigeometry with animated instructional videos and interactive problem solving. Learn about trigonometry in a fun, easy and gamified way.

Introduction to Trigonometry

Definition

Sine, Cosine and Tangent

Congruent and Similar Figures

Linear Equations

Trigonometry

Learn about planar figures, such as polygons and circles, and their properties, such as angles, perimeter and area.

Online math course in geometry with animated instructional videos and interactive problem solving. Learn about planar figures in a fun, easy and gamified way.

Lines, Line Segments and Rays

What Are Planar Figures?

Addition and Subtraction

Multiplication

Division

Kris testing

Angle Sum of Triangle

Triangles

 The Pythagorean Theorem

What Is a Triangle?

Quadratic Equations

What Is a Square Root?

Angle Sum of a Quadrilateral

Quadrilaterals

The Number π

Circles

Planar Figures

Learn about solid figures. Get to know polyhedrons, prisms, ellipsoids, pyramids, cylinders and cones and their properties. Learn how to find surface area and volume.

Online math course in geometry with animated instructional videos and interactive problem solving. Learn about solid figures in a fun, easy and gamified way.

What Are Solid Figures?

The Times Table

Prisms

Fractions

Elementary Algebra

Powers In Algebra

Parentheses

Cylinders

Powers in Algebra

Pyramids

Cones

Spheres

Solid Figures

Learn about congruence and similarity. Get to know what congruent and similar figures are, and more about the properties of congruent and similar triangles.

Online math course in congruence and similarity with animated instructional videos and interactive problem solving. Learn in a fun, easy and gamified way.

Congruence

Congruent Triangles

Similar Triangles

Congruence and Similarity

Learn about the coordinate plane and coordinates. Perform transformations including translations, reflections, rotations and scaling.

Online math course in the coordinated plane with animated videos and interactive problem solving. Learn about coordinates in a fun, easy and gamified way.