find the length of the hypotenuse of a right triangle with legs of 9 cm and 12 cm

Answer 1

Using the Pythagorean theorem, we can find the length of the hypotenuse:

c² = a² + b²

where c is the hypotenuse and a and b are the legs of the right triangle.

Substituting the values given, we get:

c² = 9² + 12²
c² = 81 + 144
c² = 225

Taking the square root of both sides:

c = √225
c = 15

Therefore, the length of the hypotenuse of the right triangle is 15 cm.