We are given a right triangle and we are asked to determine the length of the hypotenuse. To do that we will use the Pythagorean theorem:
Where "h" is the hypothenuse and a and b the other two sides. In this case, the two sides are equal since the triangle is 45 - 45 - 90. We have the following values:
Substituting:
Solving the operations:
Taking square root to both sides:
Now we will use the following property:
Applying the property:
Solving the operations:
And thus we have found the hypothenuse in its most simplified form.