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2015-03-01T17:22:29+05:30

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Volume of cuboid = volume of cube
l.b.h=a³
a=∛200.50.100
a=∛1000000
a=100
side of cube = 100cm
then tsa of cube = 6a²
                          = 6.100²
                          = 60000cm²
tsa of cuboid = 2(lb+bh+hl)
                     = 2(200.50+50.100+100.200)
                     = 2(10000+5000+20000)
                     = 2(35000)
                     = 70000 cm²
and differences in their surface areas is  70000-60000=10000cm²
1 5 1
hey dear plz write in difrnce
now its ok dear. :)
ya pakka good dear
:)
:)
2015-03-01T17:23:58+05:30

This Is a Certified Answer

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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.
Volume of cuboid = volume of cube
l * b * h =  a^{3}
200*50*100 =  a^{3}
a =  \sqrt[3]{1000000}
a = 100 cm

surface area of cube = 6  a^{2}
= 6 (10000) = 60000  cm^{2}

surface area of cuboid = 2 (lw + wh + hl)
= 2(200*50 + 50*100 + 100*200)
=2(10000 + 5000 + 20000)
=70000  cm^{2}

Difference in surface areas = 70000 - 60000 = 10000  cm^{2}
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