Answers

2016-01-21T21:47:08+05:30
Tape is used at 12 edges
i.e at 4 lengths, 2 breadths and 4 heights. 
total lengthof tape = 4(l+b+h)
=4(30+25+25)cm
=4(80)cm
=320cm
hence 320cm of tape is needed to fix 12 edges

0
2016-01-22T21:12:40+05:30