Parallel lines exist everywhere in everyday life, including on the sides of a piece of paper and the way that the shelves of a bookcase are positioned. Parallel lines are two or more lines that when drawn out infinitely ...

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One common example of perpendicular lines in real life is the point where two city roads intersect. When one road crosses another, the two streets join at right angles to each other and form a cross-type pattern. Perpend...

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Skew lines are lines that are not on the same plane, are not parallel and do not intersect. Some examples of skew line illustrations in geometry include two lines running through the opposite edges of a tetrahedron and a...

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Parallel lines are important in mathematics because they are at the base of several conjectures involving angles in geometry. Drawing a line, called a transversal, through a pair of parallel lines forms three different t...

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A triangle can never have any parallel lines because there must be three angles that add up to 180 degrees, which makes it impossible for the three sides to avoid intersecting. A parallel line can never intersect with an...

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A parallelogram is a shape that has two pairs of parallel sides. There are three different types of parallelograms: rhombus, square and rectangle.

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Examples of cylinders in everyday life include food tins, drink cans, candles, toilet paper rolls, cups, aerosol cans, flower vases, test tubes, fire extinguishers, plant containers, salt shakers and pencil holders. Othe...

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