Length of one side for maximum area of trapezoid (solution by Calculus)
Problem
BC of trapezoid ABCD is tangent at any point on circular arc DE whose center is O. Find the length of BC so that the area of ABCD is maximum.
area of trapezoid
Length of one side for maximum area of trapezoid (solution by Geometry)
Problem
BC of trapezoid ABCD is tangent at any point on circular arc DE whose center is O. Find the length of BC so that the area of ABCD is maximum.
Trapezoidal Strip of Land from a Triangular Lot
Problem
A strip of 640 m2 is sold from a triangular field whose sides are 96 m, 72 m, and 80 m. The strip is of uniform width h and has one of its sides parallel to the longest side of the field. Find the width of the strip.
A. 7.1 m
B. 8.1 m
C. 8.7 m
D. 7.7 m
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