The measures of four angles of a quadrilateral are (2x + 10)°, (3x + 15)°,
(4x – 30)° and (2x – 20)° respectively; then find the measure of the smallest
exterior angle of it.
(1) 60° (2) 120°
(3) 100° (4) 80°
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x =335 /11 put value of x in all and in which smallest angle come it's the answer
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