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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

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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