Question

utilize as razões trigonométricas para encontrar os valores d x e y​

Answer 1

Resposta:

a)

sin 30 = x/12

x = 12 . 1/2

x = 6

b)

cos 60 = 8/x

x = 8 / 1/2

x = 16

h² = c² + c²

16² = y² + 8²

y² = 192 , y > 0

y = 8√3

c)

sin 90 / 10 = sin 45 / x

1/10 = (√3/2 ) / x

x = (10 . √3/2) / 1

x = 5√3

h² = c² + c²

10² = y² + (5√3)²

y² = 100 - 75

y = +-√25, y>0

y = 5