\( A B \) is a diameter of a circle and \( C \) is any point on the... VIDEO
\( A B \) is a diameter of a circle and \( C \) is any point on the circumference of the circle. Then
\( \mathrm{P} \)
(A) the area of \( \triangle A B C \) is maximum when it is isosceles
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(B) the area of \( \triangle \mathrm{ABC} \) is minimum when it is isosceles
(C) the perimeter of \( \triangle \mathrm{ABC} \) is maximum when it is isosceles
(D) None of these.
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