the two segments AD and AB are equal therefore if you make the two equal to each other you will get the answer:
<span>x^2+2=11 then you subtract two to put x squared on the side by itself </span>then you have <span>x^2=9 then all you have to do is take the square root of 9 and </span><span>x^2 and you get x=3 thefore the answer is A</span>
