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प्रश्न
Find the height of a cuboid whose base area is 180 cm2 and volume is 900 cm3?
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उत्तर
Base area of the cuboid = Length × Breadth = 180 cm2
Volume of cuboid = Length × Breadth × Height
900 cm3 = 180 cm2 × Height
Height = `(900/180)` cm
Height = 5 cm
Thus, the height of the cuboid is 5 cm.
संबंधित प्रश्न
A wooden bookshelf has external dimensions as follows: Height = 110 cm, Depth = 25 cm, Breadth = 85 cm in following figure. The thickness of the plank is 5 cm everywhere. The external faces are to be polished and the inner faces are to be painted. If the rate of polishing is 20 paise per cm2 and the rate of painting is 10 paise per cm2. Find the total expenses required for polishing and painting the surface of the bookshelf.

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