tuma66 tuma66
  • 13-05-2019
  • Mathematics
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help me with this please ​

help me with this please class=

Respuesta :

cblue8282 cblue8282
  • 13-05-2019

Answer:

m∠8 = 124°

Step-by-step explanation:

1. Find m∠1

m∠1 and m∠2 are supplementary, since they are on the same line.

That means m∠1 + m∠2 = 180.

Plug in: 4x + 2x - 6 = 180

Simplify + subtract: 6x = 186

Divide: x = 31

Plug in: m∠1 = 4(31) --> m∠1 = 124°

2. Since ∠1 and ∠4 are vertical, they are congruent. Since ∠4 and ∠8 are corresponding on parallel lines, they are also congruent. Therefore, ∠1 and ∠8 are congruent, which means m∠1 = m∠8

Plug in: m∠8 = 124°

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