The four angles of a quadrilateral are in the ratio 1 : 2 : 3 : 4. Then what is the measure of the smallest angle ?
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Answer :-
Let the angles be x , 2x , 3x and 4x.
- Sum of all angles of quadrilateral = 360°
x + 2x + 3x + 4x = 360°
10x = 360°
x = 36°
Angles = 36° , 72° , 108° and 144°
Smallest angle = 36°
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