find the total surface area of a cuboid if its length , breadth and length are 7 cm , 5cm, and 10 cm respectively
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given :-
length of the cuboid = 7cm
breadth of the cuboid = 5cm
height of the cuboid = 10cm
formula for finding the total surface area of a cuboid is 2(lb + bh + lh)
therefore it's total surface area = 2 [ (7 × 5) + (5 × 10) + (7 × 10) ]
= 2 ( 35 + 50 + 70 )
= 2 × 155
= 310cm²
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