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Lines k and I are parallel, and the measure of angle ABC is 19 degrees. D F B a.) What is the measure of angle ECF? If you get stuck, consider translating line l by moving B to C. degrees b.) What is the measure of angle BCD? degrees

Respuesta :

It is given that two lines k and l are parallel.

[tex]\angle ABC=19^o[/tex][tex]\angle ABC\text{ and }\angle ECF[/tex]

lie on the same side of the transversal m.

Therefore, being corresponding angles,

[tex]\angle ABC=\angle ECF=19^o[/tex][tex]\angle ABC\text{ and }\angle BCD[/tex]

lie on the opposite side of the transversal m. Therefore, being alternative angles

[tex]\angle ABC=\angle BCD=19^o[/tex]

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