Answer:6root2=8.4852831374
Explanation:
a^2+b^2=c^2
where in this case c^2=11^2=121
a/b=7, 7^2=49
to find x, you would have to do c^2-(b^2 or a^2 whatever u want to call it) and then root the ans, so root(121-49)=6root2=2.49
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