1.

Four angles of a quadrilateral are in the ratio 1 : 2 : 3 : 4. The difference between the greatest and the smallest angle is

A. \[\text{125 }\!\!{}^\circ\!\!\text{ }\]
B. \[\text{75 }\!\!{}^\circ\!\!\text{ }\]
C. \[\text{108 }\!\!{}^\circ\!\!\text{ }\]
D. \[\text{120 }\!\!{}^\circ\!\!\text{ }\]
Answer» D. \[\text{120 }\!\!{}^\circ\!\!\text{ }\]


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