. Find the surface area of the cuboids whose dimensions are :
(i) Length = 10 cm, breadth = 5 cm, height = 4 cm
(ii) Length = 15 cm, breadth = 7 cm, height = 9 cm.
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Answer:
(¡)surface area of cuboid = 2[lb+bh+lh]
= 2[10*5+5*4+10*4]
= 2[50+20+40]
= 2[110]
= 220 cm^2
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