The value of x from the given supplementary angles is 42°.
Find the value of x using the measures of the two given adjacent supplementary angles.
The two angles are 3x and 54
3x+ 54=180
Supplementary angles measure is equal to 180°.
hence we frame it as:
3x+ 54=180
now arrange the like terms:
⇒ 3x = 180-54
⇒ 3x=126
⇒ x=126/3
⇒ x=42
hence x value is 42°
now 3x=3(42)
= 126
the two angles are 126° and 54°
Hence we get the required answer.
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