The cost of painting the top surface of a triangular board at 80paisa per square meter is ₹179.40. If the height of the board measures 24.5m, find its base???
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First divide the total cost by the rate of painting that is, 179.40/0.8. The answer you get is the area. Then divide the area by the height and multiply the answer with 2 to get the base.
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Area = 179.40÷0.80 = 224.25
Area = 1/2 × b × H
224.25 = 1/2 × b × 24.5
18.30 = b
Area = 1/2 × b × H
224.25 = 1/2 × b × 24.5
18.30 = b
Riya1542:
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