Classifying Triangles

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Circumcircle of a triangle. Definition and properties with interactive applet.

An overview of the various centers of a triangle

Demonstration that a triangle with fixed perimeter does not have a constant area.

Trinagles can be classified according to sides and angles

The conventional method of calculating the area of a triangle (half base times altitude) with pointers to other methods and special formula for equilateral triangles

Worksheet to practice classifying triangles as scalene, isosceles, or equilateral.

In this Early Edge video lesson, you'll learn more about Triangles: Perimeter and Area, so you can be successful when you take on high-school Math & Geometry.

In this Early Edge video lesson, you'll learn more about Triangles, so you can be successful when you take on high-school Math & Geometry.

In this Early Edge video lesson, you'll learn more about Complementary and Supplementary Angles, so you can be successful when you take on high-school Math & Geometry.

In this Early Edge video lesson, you'll learn more about Types of Angles, so you can be successful when you take on high-school Math & Geometry.

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