dz24ss5gs4 dz24ss5gs4
  • 25-05-2021
  • Mathematics
contestada

Can someone help me

Can someone help me class=

Respuesta :

heikepowe1976 heikepowe1976
  • 27-05-2021

Answer:

B = 129

Step-by-step explanation:

Opposite angles of a parallelogram are equal (or congruent)

A and C are both 51.

All angles in a parallelogram equal 360

Take both the known angles and substract from 360, than divide by 2.

B = (360 - 51 - 51)/2

B = 129

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