Jawabanmu

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2014-03-29T22:08:52+07:00
Sin A = depan / miring
        = 6 / 10

Jadi,
depan = 6
miring = 10
samping = 8

cos A = samping / miring
         = 8 / 10

tan A = depan / samping
         = 6 / 8
1 5 1
2014-03-29T22:09:01+07:00
Sin itu depan/miring cos samping/miring tan depan/samping....6-10 sudut istimewa 3-5-4 jadi sisi 1 lg 8....6-8-10... cosA=8/10....tanA=6/8