किसी त्रिभुज का क्षेत्रफल `216 cm^(2)` तथा भुजा `3:4:5` में हैं। त्रिभुज का परिमाप ज्ञात करें?A. 6 cmB. 12 cmC. 36 cmD. 72 cm

किसी त्रिभुज का क्षेत्रफल

1.	किसी त्रिभुज का क्षेत्रफल `216 cm^(2)` तथा भुजा `3:4:5` में हैं। त्रिभुज का परिमाप ज्ञात करें?A. 6 cmB. 12 cmC. 36 cmD. 72 cm
Answer» Correct Answer - D स्पष्टतः 3,4,5 triplet बनाते है अतः त्रिभुज समकोण त्रिभुज है। माना कि भुजाएं हैं `=3x+4x+5x-12x` Area of triangle `=1/2xx3xx4x` `1/2xx3x xx4x=216` `x^(2)=(216xx2)/(3xx4)=36` `x=sqrt(36)=6` `:.` Perimeter `=12xx6=72cm`

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किसी त्रिभुज का क्षेत्रफल `216 cm^(2)` तथा भुजा `3:4:5` में हैं। त्रिभुज का परिमाप ज्ञात करें?A. 6 cmB. 12 cmC. 36 cmD. 72 cm

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