Answer:
yes, you are correct the answer is F!
Step-by-step explanation:
Just use Pythagorean theorem
a^2 + b^2= c^2
a and b is for the legs and c is for the hypothenuse
1st plug in 3^2 + b^2= 4^2
2nd do the squares 9 +b^2 = 16
3rd subtract 9 to get b^2 = 7
Finally square root to get b by itself and you get b = square root 7
