SOLUTION: Using cosine and sine what is angle x if it is a right triangle with a hypotenuse of 15 and a base of 12?

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Question 866324: Using cosine and sine what is angle x if it is a right triangle with a hypotenuse of 15 and a base of 12?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
I'm assuming the angle is formed by the base and the hypotenuse.
Then,
cos%28x%29=ADJ%2FHYP=12%2F15=4%2F5
x=cos%5E%28-1%29%284%2F5%29
x=36.8 degrees