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What is the length of AC? Round to the nearest tenth.
10.5m 12.3m 18.3m 21.4m

 

 Jul 18, 2020
 #1
avatar+600 
+4

hint:  this question involves the law of sines!! I'm pretty sure- (if you haven't gotten this far yet... i don't recommend myself for this question). The law of sines states:

\(\frac{\text{sin} A}{a}=\frac{\text{sin}B}{b}= \frac{\text{sin}C}{c}\) where A, B, and C are the sides of the triangle, and a, b, and c are the opposite angles, respectively. 

 Jul 18, 2020
 #2
avatar+1421 
+2

You don't need the law of sines, you need this:

 

15m / tan(55º) ≈ 10.5 m  laugh

Dragan  Jul 19, 2020

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