If your car gets 37.5 miles per gallon, how many km/l is this?

One mile is equal to 1.609 km One gallon is equal to 3.785 liter Which implies 37.5 miles/gallon into Km/Liter will be (37.5*1.609)/(1*3.785) kilometers per liter. so 37.5 miles/ gallon will be 15.941 km/L. The conversion factor was 1.609 divided by 3.785 . Which is 0.4250

AC bisects ∠BAD, => ∠BAC=∠CAD (1)

thus in ΔABC and ΔADC,    ∠ABC=∠ADC (given),

                                      ∠BAC=∠CAD      [from (1)],

AC (opposite side side of ∠ABC) = AC (opposite side side of ∠ADC), the common side between ΔABC and ΔADC

Hence,      by AAS axiom, ΔABC ≅ ΔADC,

Therefore,  BC (opposite side side of ∠BAC) = DC (opposite side side of ∠CAD),  since (1)

Hence, BC=DC proved.