TRIGfind the following in triangle CAT.lineAT is 16.5angleT is 43degrees how do I solve?

TRIGfind The Following In Triangle CATlineAT Is 165angleT Is 43degrees How Do I Solve class=

Answer :

h= 22.6, CT =47º, CA=15.4

1) We're going to use trig ratios for that. So to find CT, the hypotenuse, and considering the angle 43º as our reference, we can write:

[tex]\begin{gathered} \cos (43)=\frac{adjacent}{\text{hypotenuse}} \\ \cos (43)\text{ =}\frac{16.5}{h} \\ \cos (43)h=16.5 \\ h=\frac{16.5}{\cos (43)} \\ h=22.5609\approx22.6 \end{gathered}[/tex]

So the CT is equal approximately to 22.6.

2) Now let's find out the measure of angle C. The simplest way is to consider the fact that every triangle has the sum of its interior angles as 180º

90º +43º + C = 180º

133º + C = 180º

C =180º -133º

C = 47º

3) Let's focus on CA leg.

Concerning that, we can make use of another trig ratio. Since we know the measure of angle C

[tex]\begin{gathered} \tan (47)=\frac{opposite}{\text{adjacent}} \\ \tan (47)\text{ =}\frac{16.5}{CA} \\ CA=\frac{16.5}{\tan (47)} \\ CA\text{ =15.38649}\approx15.4 \end{gathered}[/tex]

CA is approximately 15.4