1.

(i) The base of an open rectangular box is square and its volume is256 cm^(3). Find the dimensions ofthis box ifwe want to use least material for construction: (ii) A window is in theform of a rectangle surmounted by a semi-circle. Its perimeter is 40m. Find the dimensions of this window from which maximum light canadmit.

Answer»


ANSWER :(i) 8 cm, 8 cm, 4 cm
(ii) Length = `80/(pi+4)" metre, Breadth "40/(pi+4)" metre,Radius "40/(pi+4)` metre


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