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Question #e84ce

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Sep 17, 2017

dimension is #21#x#15#

Explanation:

let rectangular Wide sides #= b#
then longer side #l=b+6#
#perimeter=36=2(l+b)=2(b+6+b)#
#2b+6=18#
#2b=18-6=12#
#b=6#

wide side #b=6m#
longer side #l=6+6=12m#
dimension is #12#x#6#

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