if a cuboidal box has height,lenth and width as 20cm,15cm,and 10cm respectively.then its total surface area is:
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The total surface area of the cuboid is 1300 cm² . The length,breadth and height of a cuboid are 20cm ,15cm ,10cm respectively.
total surface area= 2( 20×15+15×10+10×20)
= 2(300+150+200)
2(650)
= 1300 cm³
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