किसी त्रिभुज की भुजाओं का अनुपात `5:6:7` तथा परिमाप 54 सेमी हैं त्रिभुज का क्षेत्रफल ज्ञात करें?A. `18 m^(2)`B. `54sqrt(6)m^(2)`C. `27sqrt(2)m^(2)`D. `25m^(2)`

किसी त्रिभुज की भुजाओं का �

1.	किसी त्रिभुज की भुजाओं का अनुपात `5:6:7` तथा परिमाप 54 सेमी हैं त्रिभुज का क्षेत्रफल ज्ञात करें?A. `18 m^(2)`B. `54sqrt(6)m^(2)`C. `27sqrt(2)m^(2)`D. `25m^(2)`
Answer» Correct Answer - B Ratio`=5:6:7` sumof sides `=` perimeter `=18` sides `5/18xx54=15` `6/18xx54=18` `7/18xx54=21` metres `S=(15+18+21)/2=27` `:.` Area of `Delta=sqrt(s(s-a)(s-b)(s-c))` `=sqrt(27xx12xx9xx6)=54sqrt(6)m^(2)`

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किसी त्रिभुज की भुजाओं का अनुपात `5:6:7` तथा परिमाप 54 सेमी हैं त्रिभुज का क्षेत्रफल ज्ञात करें?A. `18 m^(2)`B. `54sqrt(6)m^(2)`C. `27sqrt(2)m^(2)`D. `25m^(2)`

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