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Adinda Tina
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Sin alpha = depan / hipotenusa Sin 30' = 1/2 30 Cos alpha = samping / hipotenusa Cos 30' = akar 3/2 = 1/2 akar 3 2. akar 3 Tan Alpha = Depan / samping = 1/3 akar 3 60 1
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Student XII IPA
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