Hello!
You can solve this using the Pythagorean Theorem.
The Pythagorean Theorem is [tex] a^{2} + b^{2} = c^{2} [/tex]
c is the hypotenuse
a and b are the other sides
Put in the values we know
[tex] a^{2} + 6^{2} = 11.7^{2} [/tex]
Square the numbers
[tex] a^{2} +36 = 136.89[/tex]
Subtract 36 from both sides
[tex] a^{2} =100.89[/tex]
Take the square root of both sides
a = 10.044
Round to the nearest thenth
a = 10
The answer is 10
Hope this helps!
