In the figure below, circles A and B
are tangent externally. CD and EF are the common external
tangents. Lines AD, AF, BC, and BE determine the shaded
regions of areas S, S1,
and S2,
(1) Prove that S1 =
S2,
(2) S = S1
+ S2.
View or post a solution
See also:
Typography of problem 180.
