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##### Frequently Asked Questions about Trigonometry

What is trigonometry?

Trigonometry is a mathematical topic which looks at the relationship between angles and distances.

Who invented trigonometry?

Trigonometry was invented in Greece. The word comes from **trigon**, which means triangle and **metron**, which means to measure.

How do you find an angle using trigonometry?

To find an angle using trigonometry, you use the inverse function of either sin, cos or tan, also known as sin-1, cos-1 and tan-1.

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