Question

Based on the figure, which equation is true?
A.cos x° = 2 tan y°
B.tan x° = 2 sin y°
C.sin x° = 2 cos y°
D.sin x° = 2 tan y°

Answer 1

please help me :)

Answer 2

so, keep in mind that you have 2 well known triangles there, a 45-45-90 degrees one, "touching" a 30-60-90 degrees one
on the 45-45-90, the missing side is just "either side"\(\bf \times \sqrt{2}\)
on the 30-60-90, the missing side is just "smaller side" \(\bf \times \sqrt{3}\)