maria10287
maria10287 maria10287
  • 26-02-2021
  • Mathematics
contestada

find the value of x
x=

find the value of x x class=

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 27-02-2021

9514 1404 393

Answer:

  x = 65

Step-by-step explanation:

The sum of exterior angles of a polygon is 360°.

  40 + x + 77 + 2x + 45 = 360

  3x + 165 = 360 . . . . simplify

  x + 55 = 120 . . . . . . divide by 3

  x = 65 . . . . . . . . . . . subtract 55

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