Răspuns :
folosesc notatia facuta de tine BP⊥AC
CP=√(BC^2-BP^2)=√(45^2 - 36^2)
CP=27 dam = 270 m
cu teorema catetei BC in tr. ABC
BC^2=CP*AC
AC=BC^2/CP=45^2/27
AC=75 dam =750m
aria ABCD
A=2*AC*BP/2=750 * 360=270000 m2 =27 ha
CP=√(BC^2-BP^2)=√(45^2 - 36^2)
CP=27 dam = 270 m
cu teorema catetei BC in tr. ABC
BC^2=CP*AC
AC=BC^2/CP=45^2/27
AC=75 dam =750m
aria ABCD
A=2*AC*BP/2=750 * 360=270000 m2 =27 ha