hanooy27110
hanooy27110 hanooy27110
  • 04-08-2020
  • Mathematics
contestada


Use exterior angle of triangle theorem to find the missing measure of an angle in a polygon. ​

Use exterior angle of triangle theorem to find the missing measure of an angle in a polygon class=

Respuesta :

09pqr4sT
09pqr4sT 09pqr4sT
  • 04-08-2020

Answer:

[tex]\boxed{x=60}[/tex]

Step-by-step explanation:

The exterior angle theorem states that the exterior angle of a triangle is equal to the sum of the two opposite interior angles of the triangle.

[tex]130=70+x[/tex]

Subtract 70 from both sides.

[tex]130-70=70+x-70[/tex]

[tex]60=x[/tex]

Answer Link
devishri1977
devishri1977 devishri1977
  • 04-08-2020

Answer:

x = 60°

Step-by-step explanation:

Exterior angle is equal to the  sum of opposite interior angles

x + 70 = 130

Subtract 70 from both sides

x = 130 - 70

x = 60°

Answer Link

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