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Difficulty: 2/102025 IOQM 2025 (Q22)

The interior angles of a triangle are in the ratio . Find the measure of the largest angle in degrees. (Write only the numeric value, e.g. 90 for 90°)

Options:

  • A.

    92

  • B.

    93

  • C.

    91

  • 90

Guide / Hint

Hint 1: Let the angles be , , and .

Hint 2: The sum of angles in a triangle is , so . Solve for .

Hint 3: Calculate the largest angle, which is .

Solution

Step 1: Let the measures of the three angles be , , and degrees. The sum of the interior angles of a triangle is always :

Step 2: Solve for :

Step 3: The largest angle is . Calculate its value:

So the largest angle is (a right triangle).

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