Respuesta :

Answer:

77°

Step-by-step explanation:

60°+128°+95°=283°

The sum of all angles = 360°

360°-286°=77°

Edit : Typo

Answer:

x = 77 degrees

Step-by-step explanation:

All angles of a trapezoid will add up to equal 360 degrees.

In other words: 60 + 128 + 95 + x = trapezoid

60 + 128 + 95 = 283 degrees.

360 - 283 = 77

x = 77 degrees

Check your work:

60 + 128 + 95 + 77 = 360

188 + 95 + 77 = 360

283 + 77 = 360

360 = 360

Correct