Question

Me ajudemmmmmm por favorrr

Answer 1

Resposta:

lei do seno

$\frac{970}{ \sin(45) } = \frac{x}{ \sin(60) } \\ \frac{970}{ \frac{ \sqrt{2} }{2} } = \frac{x}{ \frac{ \sqrt{3} }{2} } \\ \frac{970}{ \sqrt{2} } = \frac{x}{ \sqrt{3} } \\ \sqrt{2} x = 970 \sqrt{3} \\ x = \frac{970 \sqrt{3} }{ \sqrt{2} } \times \frac{ \sqrt{2} }{ \sqrt{2} } \\ x = \frac{970 \sqrt{6} }{2} = 485 \sqrt{6} \\ x = 485 \times 2.4 = 1164$

letra d