MathDB
Trapezoid Area

Source:

December 8, 2005
geometrytrapezoidratioquadraticsfloor functionAMCAIME

Problem Statement

One base of a trapezoid is 100 units longer than the other base. The segment that joins the midpoints of the legs divides the trapezoid into two regions whose areas are in the ratio 2:3.2: 3. Let xx be the length of the segment joining the legs of the trapezoid that is parallel to the bases and that divides the trapezoid into two regions of equal area. Find the greatest integer that does not exceed x2/100.x^2/100.