Answer:
50
Step-by-step explanation:
Using the pythagorean theorem:
a²+b²=c²
30²+40²=c²
900+1600=c²
c²=2500
c=50
The third side is equal to 50
[tex]a^{2} + b^{2} = c^{2}[/tex]
30^2 + 40^2 = c^2
900 + 1600 = c^2
2500 = c^2
find square root of 2500
50 = c
