Question

calcule o valor de x e y nos triângulos

Answer 1

Cat Oposto / Cat Adjacente = tangente

a)

X/20 = 1 (tg de 45°)

X = 20

Cat Op/Hip = Seno

X/Y = √2/2

20/Y = √2/2

40/Y = √2

40/√2 = Y ≈ 28,36

B)

CO/Hip = Seno 60

X/100 = √3/2

X = 50√3

CA/Hip = Cos60°

Y/100 = 1/2

Y = 50

C)

CO/Hip = Sen30°

2/X = 1/2

X = 4

CA/Hip = Cos30°

Y/X = √3/2

Y/4 = √3/2

Y = 2√3