Isosceles Trapezoid -- Equal Areas


Given an isosceles trapezoid with parallel sides of length a and b. A line of length c is drawn parallel to the bases of length a and b so as to divide the isosceles trapezoid into two equal areas. Express c in terms of a and b. See EMT 525/725 problem Isosceles Trapezoid. This is the solution to the fourth part of that problem.



Solution?


For a construction of the segment of length c, click here.

For GSP file of the completed construction, click here.


Extension.

Prove that for positive a and b,


with equality if and only if a = b.


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