Vertical angels is the answer
(x , y) = (-4 , 6) There you go
So, theres this rule for all 30,60,90° triangles, one leg is x, the hypotenuse is 2x, and the longer leg is x(sqrt3), so ab is 2(43) so it is 86. im not sure why it says round to 2 decimal places. uh... if so, 86.00. so... that part confused me.