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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... More »

www.reference.com Math Geometry

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 ... More »

www.reference.com Math Geometry

Refrigerator compressors and chemical hand warmers are both real-life examples of enthalpy. Both the vaporization of refrigerants in the compressor and the reaction to the iron oxidation in a hand warmer generate a chang... More »

www.reference.com Science Physics Thermodynamics
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The phrase "perpendicular lines intersect to form right angles" can be turned into an if-then statement by saying: If perpendicular lines intersect, then the lines form right angles. It can also be phrased as: If two lin... More »

www.reference.com Math Geometry

A kite is a real life example of a rhombus shape. However, while a kite has a rhombus shape, it is not a rhombus. More »

www.reference.com Math Geometry

Perpendicular lines are lines that intersect one another at a 90 degree angle. If two lines are perpendicular, then multiplying the slopes of the two lines together equals -1. More »

www.reference.com Math Geometry

The centroid of any triangle, right triangles included, is the point where the angle bisectors of all three vertices of a triangle intersect. Given a triangle made from a sufficiently rigid and uniform material, the cent... More »

www.reference.com Math Geometry