$\"\"$

The length of a = 45, b = 28 and hypotenuse c = ?.

Apply Pythagorean theorem: $\"\"$ .

$\"\"$ (Substitute a = 45, and b = 28)

Evaluate powers: $\"\"$ .

$\"\"$

Apply square roots property: $\"\"$ then $\"\"$ .

$\"\"$

$\"\"$ (Evaluate power: $\"\"$ )

The positive value of c = 53. $\"\"$

The hypotenuse of $\"\"$ .