If X=3z-20, find the measure of every angle of the quadilateral.

Ithink the answer is: it is likely.

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.

The answer is d. 16^2 + 63^2 = x^2hope this .