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Aline that intersects one of two parallel lines intersects the other also always sometimes never

When are triangles considered similar? a. corresponding angles are equal andcorresponding sides are proportionalb. corresponding angles are proportional andcorresponding sides are equalc. corresponding angles are equal orcorresponding sides are proportionald. corresponding angles are proportional orcorresponding sides are equal select the best answer from the choices providedmark this and retumsave and exitnext

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?