Answer:
B.
Step-by-step explanation:
Using Pythagoras theorem
c² = a²+b²
Where c = hypotenuse, a = base and b = perpendicular
So putting the givens
c² = (2√5)² + (6)²
c² = 20+36
c² = 56
Taking square root on both sides, we get
c = √2×2×14
c = 2√14
