So close! But instead of adding the multiplication sign after the number you need to add them before. Good job though! :)
The answer is D
if the legs are 5 and 4 cm the equation to find the hypotenuse would be 5^2+4^2=c^c
5 squared is 25 and 4 squared is 16 that gives you 41, normally you would square root the 41 but it gives you a decimal number
We would need to know how many are in each box to figure this out.