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The sides of a triangular field are 41 m, 40 m and 9 m. The number of rose beds that can be prepared in the field if each rose bed, on an average, needs 900 square cm space,A. 2000B. 1800C. 900D. 800 |
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Answer» Correct Answer - A Area of triangular field `sqrt(s(s-a)(s-b)(s-c))` `s=(a+b+c)/2=(41+40+9)/2=45m` `"Area"=sqrt(45xx(45-41)xx(45-40)xx(45-9))` `=sqrt(45xx4xx5xx36)=180m^2=1800000cm^2` Number of rose bed `=1800000/900=2000.` |
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