Lösung 4.1:3b
Aus Online Mathematik Brückenkurs 1
Because one of the angles in the triangle is 90°, we have a right-angled triangle and can use the Pythagorean theorem to set up a relation between the triangle's sides.
The side of length 13 is the hypotenuse in the triangle, and the Pythagorean theorem therefore gives us that
i.e.
This means that
