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Adjacent and Opposite Legs

Ratios of the Sides of Similar Right Triangles

Introduction to Trigonometry

Trigonometry is the study of the relationships between the angles and sides of triangles. Watch this video for a quick summary of the basic ideas. 

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What Is Trigonometry?

The edges in a right triangle are known as the adjacent leg, opposite leg, and hypotenuse. This video explains how they’re determined relative to an angle. 

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What Are the Adjacent and Opposite Legs of an Angle?

For any two similar right triangles, the corresponding side ratios are equal. This is an important tenet of trigonometry, and it’s explained more in this video. 

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Introduction to Trigonometry

Trigonometry

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