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➷ Use the trigonometric rules
cosx = adjacent/hypotenuse
Substitute in the values:
cosx = 6/15
Solve:
cosx = 0.4
You need to do cos^-1 to get the angle:
x = 66.42182152
The answer is 66.4
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➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
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