Three angles in a triangle are in the ratio of 1:2:3, then the measure of the middle angle is _____?
- 80°
- 60°
- 90°
- None of these
Explanation
Let the angles be x, 2x, 3x.
Sum of angles in a triangle = 180°
x + 2x + 3x = 180°
6x = 180°
x = 30°
Middle angle = 2x = 2(30°) = 60°
Last verified on 09-03-2026
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