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The floor of a building consists of 2000 tiles whichare rhombus shaped and, the lengths of its diagonalsare 60 cm and 40 cm. Find the cost of polishing thefloor, if the cost per m² is Rs 3.50. |
Answer» ≡QUESTION≡The floor of a building CONSISTS of 2000 tiles which are rhombus SHAPED and, the lengths of its diagonals are 60 CM and 40 cm. Find the cost of polishing the floor, if the cost per m² is Rs 3.50. ║⊕ANSWER⊕║GIVEN No : of tiles = 2000 Let d₁ and d₂ be the diagonals of the rhombus d₁ = 60 cm = 0.6 m d₂ = 40 cm = 0.4 m Area of 1 rhombus shaped tile = 1/2 * d₁ * d₂ = 1/2 * 0.6 * 0.4 = 0.12 m² Area of the floor = 0.12 * 2000 = 240 m² Cost of polishing the floor = 240 * 3.50 = 840 Rs. |
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