Question

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.​

Answer 1

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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

Answer 2

Answer:

Surface area = 2(8×5+5×4+4×8)

= 2(40+20+32)

= 2(92)

= 2×92

Answer = 184 cm^2