Question

Calcule o valor de X

Answer 1

Resposta:

sen30° = x/20

1/2 . X/20

2X. 20

X= 20/2

X= 10✓

.

cos45° = X/6

√2/2 . X/6

2X = 6 . √2

X= 6 . √2/2

X= 3√2

Answer 2

$\mathsf{x=30\sin(30^{\circ})=30.\dfrac{1}{2}=15}$

$\mathsf{x=6\cos(45^{\circ})=6.\dfrac{\sqrt{2}}{2}=3\sqrt{2}}$

$\mathsf{x=10\sqrt{3}\cos(60^{\circ})=10\sqrt{3}</p><p>.\dfrac{1}{2}=5\sqrt{3}}$