I cut a piece of rope into four segments.
Segment 1= 0.75 cm
Segment 2= 2.278
Segment 3= 6.11
Segment 4= 6.72

Find the following:
i) Sum of all segments
ii) Sum of first two segments
iii) Sum of last two segments
iv) How much longer is the sum of 3rd and 4th Segment than Sum of 1st and 2nd Segment?​