Find the volume and surface area of a cuboid of ℓ = 10 cm, b = 8 cm and h = 6 cm.
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Solution
V = ℓ × b × h = 10 cm × 8 cm × 6 cm = 480 cm3
Surface area = 2 (ℓ b+ℓh+bh)
= 20(10 cm × 8 cm + 10 cm × 6 cm + 8 cm × 6 cm)
= 2(80 + 60 + 48) cm2=376cm2