Question

I need help with this geometry!

Answer 1

Answer:

$7.8(sin23^o)$

Step-by-step explanation:

$Sin23=\frac{opp}{hyp}$

$Sin23=\frac{BC}{7.8}$

$0.3907=\frac{BC}{7.8}$

$BC=3.04746$

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hope it helps...

have a great day!!