Answer:

Parallel Lines and Vertical Angles:

4. D.

5. A.

Parallel Lines are lines that do not meet or do not intersect at any point. In the given choices at number 4 only letter D justifies this definition. In letter A consecutive sides of the window meet at a common corner. In letter B the intersection of roadways definitely has a common point and letter C railway line crossing also meets at a certain point.

Vertical Angles are the angles opposite each other when two lines cross. These angles share the same vertex and are always congruent.

For the illustration, see attachment.

What are parallel lines: brainly.ph/question/2411518

What are vertical angles: brainly.ph/question/1985703

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