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The floor of a building consists of 3000 tiles which are rhombus shaped and each of its diagonals are 45 cm and 30 cm in length. Find the total cost of polishing the floor, if the cost per m2 is Rs 4. |
Answer» Area of a rhombus=`1/2xxD_1XXD_2` Where `D_1` and `D_2` are diagnols of rhombus.substituting values we get=>`1/2xx45xx30=675(cm)^2` area of 3000 such tiles=`3000xx675=2025000(cm)^2=202.5(m)^2` cost of polishing=`202.5xx4=Rs.810` |
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