Respuesta :

Answer:

60°

Let the angle be y and its supplement be 180° − y

ABC,

⇒y= 180° − y/2 (Angle half of its supplement)

⇒2y=180 ° − y

⇒2y + y =180 °

⇒3y = 180 °

⇒y= 3/180 °

⇒y=60°

altavistard

Answer:

the angle is Ф = 60°

Step-by-step explanation:

Represent the angle by Ф.  Then the supplement of this angle is 180° - Ф.  Then the angle is Ф = (1/2)(180 ° - Ф).

Start the solution by multiplying both sides of this equation by 2:

2Ф = 180 ° - Ф.

Combining like terms, we get:

3Ф = 180°

Then the angle is Ф = 60°

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