ABCD romb AB=4cm PABCD= cm ABCD romb ∠BAD=400 ∠ADC= 0 ABCD romb ∠ABD=500 ∠ADC= 0 BD = 6 cm AC = 12 cmM,N.P,Q mijloacele laturilor AB,BC,CD,DA P Q M N PMNPQ = cm ABCD romb BC = cm PABCD = 48 cm ABCD romb BD = 6 cmunghiul ADC are 120 grade PABCD = cm ∠BAF= 0 PABEF= cm |