17. If side of square is increased by 100/7%, then
percentage change in area.
(a) 28.5% (b) 30.6% (c) 32% (d) 27%
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Answer:
(a) 28.5 %
A= L^2
:. dA/A= n(dL/L)
= 2* (100/7)
=200/7
=28.5%
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