Intro To Trigonometry

This lesson covers:

  1. Quick overview of the formulas you need to know to calculate the side lengths, angles, and areas of triangles

Trigonometry is a branch of mathematics that studies relationships between the side lengths and angles of _________.

Circles

Quadrilaterals

Triangles

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Is the Pythagoras equation used to find a missing side length, a missing angle, or the area of a triangle?


a2 + b2 = c2

Side length

Area

Angle

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Is the formula below used to find a missing side length, a missing angle, or the area of a triangle?

21​×a×b

Side length

Area

Angle

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