fallen_6666 Posted December 1, 2005 Posted December 1, 2005 Hey could someone please help me with this question? the length of 3 sides of a trapezoid is 3 cm, Find the length of the 4th side if the area is maximized.
rakuenso Posted December 1, 2005 Posted December 1, 2005 edit nm... I took a pretty ridiculous derivative... but the answer 6? what i did was express h in terms of x and then differentiated
fallen_6666 Posted December 1, 2005 Author Posted December 1, 2005 umm, could you please show me some of the steps, its just that im confused on how to get started.
rakuenso Posted December 1, 2005 Posted December 1, 2005 [math] A = (b1+b2)/2*h = (3+3+2*b_2)/3*sqrt(9-x^2) [/math]
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