Question 67368
QUESTION1) THE DISTANCE OF TWO OF THE SIDES ARE 5-(-4)=9 & 3-(-4)=7.
NOW THAT WE HAVE TWO SIDES WE SOVE FOR THE HYPOTENUSE (C) IN THE FORMULA 
A^2=B^2=C^2
9*9+7*7=C^2
81+49=C^2
C^2=130
C=SQRT130
C=11.401754
----------------------------
HERE'S THE SOLUTION TO YOUR FIRST PROBLEM, HOWEVER: 
WE ARE HERE TO HELP SOLVE INDIVIDUAL PROBLEMS BUT NOT TO DO ALL YOUR HOMEWORK.