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bearhunter [10]
3 years ago
9

The measures of three parts of ΔABC are given in the diagram. What is AC, correct to two decimal places?

Mathematics
2 answers:
Ahat [919]3 years ago
6 0

we know that

In the triangle ABC

Applying the law of sines

 \frac{AB}{sinC}= \frac{AC}{sinB}

we have

AB=3.61\ units

C=41.82\°

B=67.62\°    

substitute the values

 \frac{3.61}{sin(41.82\°)}= \frac{AC}{sin(67.62\°)}

AC=\frac{3.61}{sin(41.82\°)}{sin(67.62\°)}

AC=5.01\ units

therefore

<u>the answer is </u>

AC=5.01\ units

kogti [31]3 years ago
3 0

<span>The Law of Sines says that in any given </span>triangle, the ratio<span> of any</span> side<span> length to the sine of its opposite </span>angle<span> is the same for all three </span>sides<span> of the </span>triangle.

Hence

sin 41.82 / 3.61 = sin 67.62 / AC

0.66679 / 3.61 = 0.92467 / AC

0.1847 = 0.92467 / AC

AC = 0.92467 / 0.1847

<span>AC = 5.006 = 5.01</span>

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