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Question
Write the measure of the supplement of the angle given below.
15°
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Solution
Let the measure of the supplementary angle be x.
15° + x = 180°
15° + x − 15° = 180° − 15° ...(Subtracting 85 from both sides)
∴ x = 165°
Hence, the measure of the supplement of an angle of measure 15° is 165°.
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