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aniked [119]
3 years ago
8

I need help with this problem

Mathematics
1 answer:
krek1111 [17]3 years ago
7 0
Use the law of sine
note that:

\frac{sin(\alpha)}{a}= \frac{sin(\beta)}{b}

sin(42)/4.8=sin(80)/PQ
PQ=4.8sin(80)/sin(42)
PQ≈7.1
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