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    Question

    If the angles of the triangle are in the ratio of 1:2:3,

    then what is the smallest angle?
    A 15° Correct Answer Incorrect Answer
    B 30° Correct Answer Incorrect Answer
    C 25° Correct Answer Incorrect Answer
    D 40° Correct Answer Incorrect Answer

    Solution

    Let the angles be x, 2x and 3x. By angle sum property, ⇒ x + 2x + 3x = 180° ⇒ x = 30° ∴ The smallest angle is 30°.

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