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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. Correct Answer Incorrect Answer
    B The triangle formed by connecting the midpoints of the sides of a triangle has one-fourth area of the bigger triangle. Correct Answer Incorrect Answer
    C The area of the triangle with the largest side I always has an area less than I²/2. Correct Answer Incorrect Answer
    D The area of an isosceles triangle with sides 2a, 2a and 3a is 3√3a²/2. Correct Answer Incorrect Answer

    Solution

    All option are right but 4th option is wrong. Because The area of an isosceles triangle with sides 2a, 2a and 3a is 3√7a²/4.

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