sin∠A=[tex]\frac{BC}{AB}[/tex] ; BC=x
BC=sin∠A×AB
BC=sin43°×AB=0,68×13=8,84
x=8,84
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sin∠A=[tex]\frac{BC}{AB}[/tex] ; BC=x
BC=sin∠A×AB
BC=sin43°×AB=0,68×13=8,84
x=8,84