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a)
96 + 4k + 3k = 180 derajat
4k + 3k = 180 - 96
7k = 84
k = 84:7 (84/7)
k = 12 derajat.
b)
<QPR = 3k
<QPR = 3 x k
<QPR = 3 x 12
<QPR = 36 derajat.