How to Test Over Perpendicular Lines?

Lines of a graph are perpendicular when their angle of intersection is exactly 90 degrees. The x and y axes are perpendicular, and so are the graph's diagonals. There are several ways to measure th... Read More »
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Ways to Make Parallel Lines & Perpendicular Lines?

According to Euclid, a straight line goes on forever. When there is more than one line in a plane, the situation becomes more interesting. If two lines never intersect, the lines are parallel. If t... Read More »
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How to Create Perpendicular Lines?

Perpendicular lines intersect each other to create four 90-degree angles. While it would be fairly easy to create some lines that are roughly perpendicular, if you want to create perfectly perpendi... Read More »
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How to Know if Two Lines Are Perpendicular in Trigonometry?

Though many people will have encountered trigonometry in school and then forgotten all about it, this branch of mathematics is vital to any number of activities, from construction to navigation. Tr... Read More »
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How to Recognize Perpendicular & Parallel Lines?

By their very definition, perpendicular lines cannot be parallel and parallel lines cannot be perpendicular. Therefore, if you're looking at a series of lines they can either be one or the other, n... Read More »
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