The longest side in a right triangle is 24 cm, and the second longest side is 20 cm. Find the length of the shortest side

13.3 cm

Step-by-step explanation:

Apply the Pythagorean Theorem:

hyp² = (2nd longest side) ² + (shortest side) ². Here the numbers are:

(24 cm) ² = (20 cm) ² + (shortest side) ², or

576 - 400 = 176 = hyp²

Taking the square root of both sides, we get (shortest side) = 13.3 cm