Pythagorean Theorem

The Pythagorean Theorem is the first tool to use in mechanics. With the help of triangles we can seperate a force into two components. Both components together form the complete force.
${\mathrm{a}}^2+{\mathrm{b}}^2={\mathrm{c}}^2$

The classic 3-4-5

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The classic triangle:
${\mathrm{3}}^2+{\mathrm{4}}^2={\mathrm{5}}^2$ $\leftrightarrow 9+16=25$