The tangent of the angle is 2√585/39 from the calculation
The tangent of an angle;
The length of the side opposite the angle (the opposing side) divided by the length of the side adjacent to the angle (the adjacent side) is the tangent of an angle in a right-angled triangle. It is represented by the tangent of the trigonometric function and is frequently shortened to "tan."
In geometry, physics, engineering, and many other disciplines, trigonometric functions like tangent are frequently utilized to evaluate and resolve issues involving angles and triangles.
Tan G = 2√15/√39
Then we rationalize to obtain;
Tan G = 2√15 * √39/√39 * √39
2√585/39