bri12359 bri12359
  • 03-01-2020
  • Mathematics
contestada

help please ...........

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Respuesta :

Valishati
Valishati Valishati
  • 03-01-2020

Answer:

D.  120°

Step-by-step explanation:

Interior angles of a rhombus always add up to 360 degrees. Thus we can set up an equation:

g+g+2g+2g=360

Now let's combine all the like terms (g's).

6g=360

Now we divide both sides by six to isolate g.

g=60

We can now substitute g into angle B, to find its value.  

2g

2(60)

120

Thus, the measure of angle B is 120, or option D.

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