Trigonometry — Right Triangles

Walkthrough

A right triangle has legs 3 and 4. Find the hypotenuse.

1. 1.Recall the Pythagorean theorem: c² = a² + b², where c is the hypotenuse and a, b are the legs.
2. 2.Identify the given values: a = 3, b = 4.
3. 3.Substitute into the formula: c² = 3² + 4² = 9 + 16 = 25.
4. 4.Take the square root: c = √25 = 5.
5. 5.So the hypotenuse is 5.