What does coag stand for in algebra 1

What value of x will make the triangles similar by the sss similarity theorem?

Select the correct answer from the drop-down menu. subtracting 3xy^2 from 8xy^2 gives the same result as the expression. [tex]3xy ^{2} - 8xy ^{2} [/tex][tex] { - 7xy}^{2} - {2xy}^{2} [/tex][tex] {7xy}^{2} - {2xy}^{2} [/tex]

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.