Question

11, 60 ___ form a right-angled triangle.
The answer should be an integer.

Answer 1

Since the given sides form a right angled triangle, it must satisfy the Pythagoras theorem, therefore
$(11{)}^2+(60{)}^2$
$=121+3600$
$=3721$
$={61}^2$
$\therefore \text{The answer is 61.}$