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3 years ago

Help please help with this question

Mathematics

2 answers:

Ulleksa [173]3 years ago

5 0

First you have to do puthagorean theorm to find the missing leg which is QR then to find sinS you go opposite over hypotenuse. simplify if needed.

siniylev [52]3 years ago

3 0

Sine is opposite/hypotenuse. Opposite of angle S is line QR, which is unknown. Therefore start with the Pythagorean Theorem to find QR. For simplicity, I'll use x as a variable for QR.

 $x^{2}$ +60²=68²
$x^{2}$ =68²-60²
$x^{2}$ =4264-3600
 $x^{2}$ =1024
x= $\sqrt{1024}$
x=32

So QR is 32. Therefore, sin S is 32/68, which simplifies to 8/17.

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