Question

the supplement of an angle is one - third of itself. determine the angle and its supplement

Answer 1

Let one angle be x
Supplement of x is (180° − x)
Given that angle x is one-third of its supplement 
Hence x = (1/3) × (180° − x)
⇒ 3x = (180° − x)
⇒ 4x = 180°
∴ x = 45°

Answer 2

Step-by-step explanation:

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