We apply the following property:
(x^n)^m = x^(n • m)
Let m = 2
(P^1/2)^2 = P^(1/2 • 2) = P
Put it back into the equation,
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You have to take 180 degrees and subtract it from 142 degrees because that’s how long the line is
So that will leave you with 30 degrees
Answer: 38 degrees