Where the orthocentre or circumcentre lies for an acute, right or obtuse triangle

1. A.
   On one of the sides of the triangle.
2. B.
   Outside the triangle.
3. C.
   Inside the triangle.
4. D.
   At one of the vertices of the triangle.

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1. A.
   The midpoint of the hypotenuse.
2. B.
   The vertex of the right angle.
3. C.
   A point on the hypotenuse but not the midpoint.
4. D.
   The midpoint of one of the legs.

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1. A.
   On the longest side of the triangle.
2. B.
   On the vertex of the obtuse angle.
3. C.
   Inside the triangle.
4. D.
   Outside the triangle.

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1. A.
   Inside the triangle.
2. B.
   Outside the triangle.
3. C.
   On one of the sides of the triangle.
4. D.
   On one of the vertices of the triangle.

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