gransazer5987 gransazer5987
  • 11-10-2022
  • Mathematics
contestada

please help me with this problem

please help me with this problem class=

Respuesta :

Lucxi10459 Lucxi10459
  • 11-10-2022

Solution

In a cyclic quadrilateral, opposite angles is supplementary.

=> 3x - 59 + 2x - 1 = 180

=> 5x - 60 = 180

=> 5x = 180 + 60

=> 5x = 240

=> x = 48

Angle A = 2(48) + 4 = 100

Also, A + C = 180

=> C = 180 - 100

=> C = 80

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