Points C and D are marked on the segment AB. Find the length of the segment AD if AC = 1.2 cm, BC = 5 cm, BD = 3.8 cm.

find the length of the segment AB:
1.2 + 5 = 6.2cm
further, we know the lengths of the segments DB and CB, we can find the length of the segment CD:
5-3.8 = 1.2cm
well, now we can find the length of the segment AD:
1.2 + 1.2 = 2.4cm
answer: 2.4cm



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