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Exploring Systems in the Real World

Question 4 • 2026 Summer 305 Edgenuity CR_Grade 8 Pre-Algebra_Math

The supplement of an 81° angle is .

Answer
A
9°
B
89°
C
99°
D
119°

Explanation

Supplementary angles add up to 180°. Subtract the given angle from 180°: 180° − 81° = 99°. Therefore, the supplement is 99°, which is choice C.

AI-written and checked against the verified answer.

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