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2016-03-05T00:07:41+05:30

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Lets length=3x
then,
breath=4x
ATQ
3x *4x=6912sq.cm
12xsquare=6912
xsq.=6912÷12
x=√5826
x=76.32
length be 228.26cm
breadth be 305.28cm
hope it will help you
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2016-03-05T00:41:18+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Length=3x (say) then,
breath=4x 

acc to ques
3x X 4x=6912sq.cm
12x=6912
x.=6912÷12
x=76.32
length be 228.26cm
breadth be 305.28cm

1 5 1