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  • 12-05-2021
  • Mathematics
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Two parallel lines cut by a transversal are shown. What is the measure of X"?

Two parallel lines cut by a transversal are shown What is the measure of X class=

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sqdancefan
sqdancefan sqdancefan
  • 12-05-2021

9514 1404 393

Answer:

  x = 10

Step-by-step explanation:

The marked angles are "alternate interior" angles, so are congruent.

  (x° +20°) = (4x° -10°)

  30 = 3x . . . . . . . . . . . . . . . divide by °, add 10-x

  10 = x . . . . . . divide by 3

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