gdfd gdfd
  • 05-05-2017
  • Mathematics
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math problem help please?

math problem help please class=

Respuesta :

HammyTheKid
HammyTheKid HammyTheKid
  • 05-05-2017
since AY bisects it, both of the equations they give you equal the same thing, so you can set them equal to each other.

8x-4 = 5x+20
subtract 5x from both sides
3x-4=20
add 4 to both sides
3x=24
divide both sides by 3
x=8
now plug in 8 to one of the equations

5(8) +20
40+20
60

you then have to multiply that by two to get the measurement of the large angle.

60*2=120

the final answer is 120°
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