Respuesta :

Y= 136!

The sum of all the angles in any triangle is always 180!

I added the two known angles, and then subtracted the sum from 180! I got 44!

Then I noticed Y is part of a supplementary angle (the two angles equal 180), because it’s a straight line!

So after I subtracted the sum from 180 and got 44 I subtracted 44 from 180 and got 136!

Answer:

y = 136°

Step-by-step explanation:

  • first step: solve for x
  • 54 + 82 + x = 180
  • x = 180 - 54 - 82
  • x = 44°

  • second step: solve for y
  • x + y = 180
  • 44 + y = 180
  • y = 180 - 44
  • y = 136°