Using relations in a right triangle, considering c as the hypotenuse, we have that the length of side A is: [tex]a = 8.5\sqrt{3}[/tex]
The relations in a right triangle are given as follows:
From the information given, we can build the following relation:
cos(A) = a/c.
[tex]\frac{\sqrt{3}}{2} = \frac{a}{17}[/tex]
[tex]a = \frac{17\sqrt{3}}{2}[/tex]
[tex]a = 8.5\sqrt{3}[/tex]
More can be learned about relations in a right triangle at https://brainly.com/question/26396675
#SPJ1