Answer:
37
Step-by-step explanation:
a tangential line is perpendicular to the circle, thus the triangle created between the tangential line, the radius line that touches the tangent point and the hypotenuse is a right triangle, since in this case we have two tangent lines we have two right triangles made with their respective tangent lines (that share a hypotenuse) for a visual check out the image attached
since they share a hypotenuse AND shorter leg of each right triangle is the same value (the radius) then by pythagorean theorem, the longer leg (the tangent lines in the picture) are equal to each other!
43 - 2x = 12x + 1
42 = 14x
3 = x
plug x into WY:
43 - 2(3) = 43 - 6 = 37