does anyone know the answer for the problem below

Answer:
Step-by-step explanation:
this is a right angled triangle and Pythagorus Formula can be used to find the length of the hypotenuse .
c²=a²+b²
c²= (11)²+ (12)²
c²= 121+144
c²= 265
c=√265
c= 16.278≅16.28