The answer will depend on what 6.5 is: 6.5 cm, 6.5 micrometres, kilometres, light years? Who knows? And you are not telling!
65 mm = 6.5 cm
72 m + 65 cm = 7200 cm + 65 cm = 7265 cm
65 cm is 650 mm
65 cm = 650 mm
65 cm = 0.65 metres
6500 cm
65 inches = 165.1 cm
0.65 metres = 65 cm
65 centimeters is 650 millimeters.
65 inches is 165.1cm
650mm
65 inches is 165.1 centimeters.