about 4.25
you get this answer from dividing the 17 into four sides because it has four sides and if each side is equal then you divide 17 divide by 4 which you get 4.25 . if you need to check your work then just do 4.25 x 4 and if you get the answer you started with then your answer is right. you can also do 17 divide 4.25 to check your work .
