contestada

D
519
to
A
70°
E
70°
m/ABC= m/BAD because they are alternate interior angles.
m/BCA = m/CAE because they are alternate interior angles.
m/BAD + xº + m/CAE = 180° because the three angles form a straight
line.
So the value of x must be

D 519 to A 70 E 70 mABC mBAD because they are alternate interior angles mBCA mCAE because they are alternate interior angles mBAD xº mCAE 180 because the three class=

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