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sin 45° = x/10√3
1/2 √2 = x/10√3 --> dikali silang
2x = 10√6
x = 5√6 cm
cos α= samping/miring
cos 45° = y/10√3
1/2 √2 = y/10√3
2y = 10√6
y = 5√6 cm
2) cos β = samping/miring
cos 60° = 15/x
1/2 = 15/x
x = 30 cm
tan β = depan/samping
tan 60° = y/15
√3 = y/15
y = 15√3 cm
semoga membantu ya :)
(1/2)√2 = x/10√3
2x = 10√6
x = (10/2)√6 = 5√6 cm
cos 45° = y/10√3
1/2 √2 = y/10√3
2y = 10√6
y = (10/2)√6 = 5√6 cm
2) cos 60° = 15/x
(1/2) = 15/x
x = 15 x 2 = 30 cm
maka:
tan 60° = y/15
√3 = y/15
y = 15√3 cm