Answer:
The length of the missing side is 21.9 m.
Step-by-step explanation:
The Pythagorean Theorem states that a² + b² = c². (a = small side, b = long side, c = hypotenuse). Substituting the values from this triangle into the Pytagorean Theorem equation, we get:
9² + 20² = c²
81 + 400 = c²
481 = c²
√481 = c
21.9 = c
