## Introduction

In order to complete the topic, you need to understand Pythagorean Therorem, but...

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How can it help us in this topic?

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## Task

At the end of the task, you will be able to solve problems like:

- Obtained, in a right triangle, a catethus or an hypotenuse when I give you the other two sides.

- In order to calcule de volume or the sirface of a pyramid, use it to obtain the height.

- In order to calcule de volume or the sirface of a regular polygon, use it to obtain the apothem.