Copyright ©2005 by Paul Niquette, all rights reserved.
figure on the right is a circle with radius a.
Its equation is x2
Point P is located along the circumference at some angle
measured counterclockwise from the x-axis. Point Q
is located exactly
radians (180 degrees) beyond P.
By inspection, we ascertain that PQ = 2a and
PQ is the longest line segment that will fit within the figure. The
be assigned any value from 0 to 2
radians (360 degrees) and PQ will always fit within the figure.
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