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Which of the following facts, if true, would allow you to prove that lines l and m are parallel? NEED HELP

M<1+m>3=180
M<5=M<8
m<6+m<3=180
m<2= m<7

Respuesta :

zeshan

Two parallel lines A and B are crossed by another line as shown in the attached figure. Angle 2 and 3 are equal, because they are opposite angles, while angle 3 and 7 are also equal, because they are corresponding angles, thus it is deduced that

angle 2 = angle 3

angle 3 = angle 7

So angle 2 = angle 7

Hence fourth option is right.

Ver imagen zeshan

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