Sin A = 0,8 ; nilai tg A =

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Sin A = 0,8 ; nilai tg A =

Jawaban Terkonfirmasi

0,8 = 8/10 = 4/5

x^2 = 5^2 – 4^2
x^2 = 25 – 16
x^2 = 9
x = 3

tan A = 4/3

Gambar Jawaban

Sin = de/mi
sin A = 0,8 = 8/10

tan = de/sa

sa???
untuk mencari samping, gunakan pitagoras:

 sqrt{10 {}^{2} - 8 {}^{2} }
=
 sqrt{100 - 64}
=
 sqrt{36}
=6

jadi, tan A = de/sa = 8/6 = 1,33…