Answer:
it's answer is 65 cm.
Explanation:
We know that the largest side is hypotenuse so here
hypotenuse (h) = 97 cm
we can consider 72 cm as base or perpendicular. So I let it as perpendicular (p) = 72 cm
Base (b) = ?
We know by using Pythagoras theorem
b² = h² - p²
b² = 97² - 72²
b² = 9409 - 5184
b² = 4225
b = √4225
b = 65
Therefore the third side is 65 cm long.