Question

Find the value of each variable show proofs​

Answer 1

x=18, y=9√3

There is a theorem with 30 degrees 30 degrees 90 degrees triangles, it is that the side opposite of 30 degrees angle is a, the hypotenuse is 2a, and the other leg opposite the 60 degree angle is a√3

So, since a=9, x=2a=18 and y=a√3=9√3

Answer 2

Answer is in the attached photo

Explanation:

Solution

The solution is in the attached photo, do take note for this question, Sine rule can be used to find both x and y as well instead of Pythagoras' Theorem.