elaijadanridge2001 elaijadanridge2001
  • 26-12-2019
  • Mathematics
contestada

Help ! I’m confused

Help Im confused class=

Respuesta :

unz unz
  • 26-12-2019

Angle 1 and angle 2 are what are called alternate angles. Two opposite angles between parallel lines. this means they are equal to each other.

So we have an equation: 2x + 20 = 3x + 10

     Subtract 2x and 10 from each side

We now have 10 = x, so we know what x is

now plug in x to angle 1: (2 x 10) + 20 = 40, so angle 1 = 40.

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