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Problems
Mathematics
Mathematics
Problem
Chords
A
B
AB
A
B
and
A
C
AC
A
C
of a circle are equal. Prove that
△
A
B
C
\triangle ABC
△
A
B
C
is isosceles by showing that
∠
A
B
C
=
∠
A
C
B
\angle ABC=\angle ACB
∠
A
B
C
=
∠
A
C
B
.
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