Jawaban:

4).dik : depan(de) = 5

samping(sa) = 12

miring(mi) = √sa² + de²

= √12² + 5²

= √144 + 25

= √169 = 13

dit : sin, cos, tan = ....?

peny : (1).sin θ = de/mi

= 5/13

(2).cos θ = sa/mi

= 12/13

( 3).tan θ = de/sa

= 5/12

5.dik : a).sin A = 3/5 = de/mi

sa = √mi² - de²

= √5² - 3²

= √25 - 9

= √16 = 4

b).cos B = 8/10 = sa/mi

de = √mi² - sa²

= √10² - 8²

= √100 - 64

= √36 = 6

dit : trigono lainnya..?

peny : a).sin A = de/mi = 3/5

cos A = sa/mi = 4/5

tan A = de/sa = 3/4

b).sin B = de/mi = 6/10

cos B = sa/mi = 8/10

tan B = de/sa = 6/8