1. The length, breadth and height of a cuboid are 20 cm, 15 cm, 10 cm respectively. Find its total surface area.

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The total surface area (AtotalAtotal) of a cuboid can be found using the formula: Atotal=2(lw+lh+wh)Atotal=2(lw+lh+wh) where: ll is the length of the cuboid, ww is the breadth of the cuboid, hh is the height of the cuboid. Given that the length (ll) is 20 cm, breadth (ww) is 15 cm, and height (hh)...
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The total surface area (AtotalAtotal) of a cuboid can be found using the formula: Atotal=2(lw+lh+wh)Atotal=2(lw+lh+wh) where: ll is the length of the cuboid, ww is the breadth of the cuboid, hh is the height of the cuboid. Given that the length (ll) is 20 cm, breadth (ww) is 15 cm, and height (hh) is 10 cm, substitute these values into the formula: Atotal=2(20×15+20×10+15×10)Atotal=2(20×15+20×10+15×10) Atotal=2(300+200+150)Atotal=2(300+200+150) Atotal=2(650)Atotal=2(650) Atotal=1300 cm2Atotal=1300cm2 Therefore, the total surface area of the given cuboid is 1300 cm21300cm2. read less
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