Find total surface area and curculed S. area of a cupoid whose length , and hight are 15, 10 and 20 cm.
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total surface of a cuboid=2(lb+bh+lh)
2[(15)(10)+(10)(20)+(20)(15)]
2[150+200+300]
2[650]
1300
total surface area of a cuboid =1300cm²
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