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In triunghiul dreptunghic ABC,m(ungiA)=90grade,se duceAD perdenticularBC,D apartine (BC).
a)Daca AB=9cm,AC=12cm,AD7,2cm,calculatiAabcsi BC.


In Triunghiul Dreptunghic ABCmungiA90gradese DuceAD PerdenticularBCD Apartine BCaDaca AB9cmAC12cmAD72cmcalculatiAabcsi BC class=