For the rotation −555∘, find the coterminal angle from 0^{\circ} \leq \theta<360^{\circ} , the quadrant, and the reference angle.The coterminal angle is □∘, which lies in Quadrant □, with a reference angle of □∘.
Q. For the rotation −555∘, find the coterminal angle from 0∘≤θ<360∘, the quadrant, and the reference angle.The coterminal angle is □∘, which lies in Quadrant □, with a reference angle of □∘.
Find Coterminal Angle: To find the coterminal angle, add or subtract multiples of 360° until the angle is between 0° and 360°.−555°+360°=−195°−195°+360°=165°
Identify Coterminal Angle: Since 165∘ is between 0∘ and 360∘, it is the coterminal angle we're looking for.The coterminal angle is 165∘.
Determine Quadrant: To determine the quadrant, check where 165° lies.0° < 165° < 90° is Quadrant I90° < 165° < 180° is Quadrant IISo, 165° is in Quadrant II.
Calculate Reference Angle: The reference angle is the acute angle between the terminal side of the given angle and the x-axis.For angles in Quadrant II, subtract the angle from 180∘.Reference angle = 180∘−165∘=15∘
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