Question
Angles of a triangle are in the ratio 1 : 2 : 3. Find the measure of the largest angle.
Solution
Let the measure of the angles of the given triangle be 'x°', '2x°', and '3x°', respectively. Sum of angles of a triangle = x + 2x + 3x = 180° So, x = (180°/6) = 30° Therefore, the largest angle of the triangle = 3x = 3 × 30° = 90° Hence, option d.
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