∠BAC=sin60°
∠B=90° ⇒ ∠C=180-(90+60)=30°
AB/sin30=BC/sin60
3/0.5=BC/√3/2
BC=3√3 см
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∠BAC=sin60°
∠B=90° ⇒ ∠C=180-(90+60)=30°
AB/sin30=BC/sin60
3/0.5=BC/√3/2
BC=3√3 см