AngleTries
AngleTries AngleTries
  • 08-07-2020
  • Mathematics
contestada

Find the value of x.

• 5
• 20
• 40
• 45​

Find the value of x 5 20 40 45 class=

Respuesta :

Leora03
Leora03 Leora03
  • 08-07-2020

Answer:

3rd option: x= 40

Step-by-step explanation:

4x° +20°= 180° (adj. ∠s on a str. line)

Bringing constants to 1 side:

4x°= 180° -20°

Simplify:

4x°= 160°

Divide by 4 on both sides:

x°= 40°

Thus, x=40.

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