Congruent Triangles

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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 Equilateral, Isoceles and Scalene 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.

A helpful scientific calculator that runs in your web browser window.

Congruent triangles - Hypotenuse and leg of a right triangle. HL

Congruent triangles - Why AAA does not work

This provides 4 to 5 congruent triangle proofs for more complex situations.

Congruent triangles - Two angles and included side. ASA

Congruent triangles - Two angles and an opposite side. AAS

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