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f the Amita's rectangular land is 2000sq.m.and perimeter of it is 180 m.. ByThe area ocalculating, let us write the length and breadth of the Amita's land. |
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Answer» Given:-Area of the rectangular plot=2000 sq. m=>l×b=2000=>l=2000/b ----------iPerimeter=180 m=>2(l+b)=180=>l+b=90=>2000/b +b =90=>b²-90b+2000=0=>b²-40b-50b+2000=0=>b(b-40)-50(b-50)=0=>b=40 or 50=> l=50 or 40l---->lengthb----->breadth |
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