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Question

Which of the following statements is NOT true?

A If the sides of a triangle are in the ratio 13 : 5 : 12, then two of its angles are acute angles.

B The triangle formed by connecting the midpoints of the sides of a triangle has one-fourth area of the bigger triangle.

C The area of the triangle with the largest side I always has an area less than I²/2.

D The area of an isosceles triangle with sides 2a, 2a and 3a is 3√3a²/2.

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