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Mathematics
Mathematics
Problem
In triangle
A
B
C
ABC
A
B
C
, points
A
A
A
and
C
C
C
lie on a circle and
A
C
AC
A
C
is a diameter. Point
B
B
B
also lies on the same circle. Explain why
∠
A
B
C
\angle ABC
∠
A
B
C
is a right angle.
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