Jawaban:
[tex]5b + 12 + 2b = 180 \\ 7b = 168 \\ b = 24 \\ \\ \\ < kln = 5b + 12 \\ = 5(24) + 12 \\ = 120 + 12 \\ = 132[/tex]
nilai b adalah 24
nilai sudut KLN adalah 132°
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Jawaban:
[tex]5b + 12 + 2b = 180 \\ 7b = 168 \\ b = 24 \\ \\ \\ < kln = 5b + 12 \\ = 5(24) + 12 \\ = 120 + 12 \\ = 132[/tex]
nilai b adalah 24
nilai sudut KLN adalah 132°