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Verified answer
Sin A = depan/miringcos A = samping/miring
tgn A = depan/samping
ΔABC dengan siku-siku di B, untuk ∠C, maka
depan = AB
samping = BC
miring = AC
sin ∠C = AB / AC
cos ∠C = BC / AC
tan ∠C = AB / BC