Find the surface area of a cuboid with the given dimensions.
(a) Length-8cm, Breadth-5cm, Height-4cm
(b) L-5. 8cm , B-4. 5cm, H=2cm.
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(a) Surface area
= 2(8 × 5 + 5 × 4 + 4 × 8)
⟶ 2(40 + 20 + 32)
⟶ 2(92)
⟶ 184 cm²
∴ Surface area is 184cm²
(b) Surface area
= 2(5.8 × 4.5 + 4.5 × 2 + 2 × 5.8)
⟶ 2(26.1 + 9 + 11.6)
⟶ 2(46.7)
⟶ 93.4 cm²
∴ Surface area is 93.4cm²
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