Answer: 24.49 or 24.5 if rounded.
Step-by-step explanation: We have to use the pythagorean theorem of course...
a² + b² = c²
15² + 20² = c²
225 + 400 = c²
600 = c²
[tex]\sqrt{600}[/tex]
c = 24.49 (If we round to the nearest tenth then the answer is 24.5)
