1977 AHSME Problems/Problem 9
Solution
Solution by e_power_pi_times_i
If arcs ,
, and
are congruent, then
. Because
is cyclic,
, and
. Then,
.
.
.
Solution by e_power_pi_times_i
If arcs ,
, and
are congruent, then
. Because
is cyclic,
, and
. Then,
.
.
.
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