So ∠ ACM = 30 = ∠ MAB.

So cm =1/2am =15/2 = 7.5 (in a right triangle, the opposite side of 30 is equal to half of the hypotenuse).

And because < b = 30 = < mab.

So AM=MB= 15.

So CB= 15+7.5=22.5.

According to the trilateral relationship: one to three to two.

Communication is 1 1.3.

AB is 22.6.

(After making an appointment)

Absolutely correct

The opposite side of 30 degrees is half of the hypotenuse.