what are the derivations of class 9 surface area and volume. All the formulae.
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1. tsa of cube = 6lsquare
2.lsa of cube = 4lsquare
3.tsa of cuboid =2(lb+bh+lh)
4.lsa of cuboid = 2h (l+b)
etc
2.lsa of cube = 4lsquare
3.tsa of cuboid =2(lb+bh+lh)
4.lsa of cuboid = 2h (l+b)
etc
adiba7861:
thank you..but i know this..i want the derivations..
Ok I don't know
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