Q. Find the measure of a negative angle coterminal with 140∘. ____∘
Subtract 360° from 140°: To find a negative angle coterminal with 140°, subtract 360° from 140° because coterminal angles are separated by full rotations, which are 360°.Calculation: 140°−360°=−220°
Check range for −220∘: Check if −220∘ is within the range of a full negative rotation (−360∘ to 0∘).Since −220∘ is greater than −360∘ and less than 0∘, it is a valid negative coterminal angle for 140∘.
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