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In \(\triangle ABC\), the circumcenter and orthocenter are collinear with vertex \(A\). Which of the following statements must be true?

(1)  \(\triangle ABC\) must be an isosceles triangle.
(2)  \(\triangle ABC\) must be an equilateral triangle.
(3)  \(\triangle ABC\) must be a right triangle.
(4)  \(\triangle ABC\) must be an isosceles right triangle.

 Nov 12, 2020
edited by Guest  Nov 12, 2020
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None are true.

 Nov 12, 2020
edited by Melody  Nov 12, 2020

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