The supplement of an angle has a measure that is 20∘
1 answer:
Answer:
D: (2x + 20°) + x° = 180°
Step-by-step explanation:
Supplementary angles add up to 180°, so that rules out A and C as possible answers.
Answer B has only one angle, so that is out too.
2x + 20° represents one angle, and x represents the other angle
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Step-by-step explanation:
Answer:
90°.
Step-by-step explanation:
if AR is diameter and the angle ∠AOR (it's m∠2) is based on this diameter, then its measure is 90°. It is central angle.
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