The connection line O 1A02B gets two vertical lines because of tangency.

So you get a right-angled trapezoid, where let o1a = ao2b = b = b.

So the height of the upper bottom A and the lower bottom B is twice that of the root number 3, the hypotenuse is a+b, and then the bottom angle is 60.

Then the solution of the column equation is enough, in which the hypotenuse can translate the height to get a triangle with a right triangle, and then the rest can be added and subtracted. The answers are 1 and 3.