Question

Trigonometry PLEASE HELP ASAP TYY

Answer 1

x = 3.1

Explanation:

Begin with the right triangle on the left. Looking at the 39° angle, the 7m side is the hypotenuse and the side marked h (see attached image) is the opposite side. The trig ratio using opposite and hypotenuse is sine.

`sin(39^\circ)=(h)/(7)\\\\h=7sin(39^\circ)` Hold this thought!

Focus attention on the right triangle on the right. Looking at the 55° angle, h is the opposite side and the side marked x is the adjacent side. The trig ratio using opposite and adjacent sides is tangent.

`tan(55^\circ)=(h)/(x)\\\\xtan(55^\circ)=h\\xtan(55^\circ)=7sin(39^\circ)\\x=(7sin(39^\circ))/(tan(55^\circ)) \approx 3.1`