# If p two parallel lines never intersect what is p

## Parallel (geometry) If p: All birds fly. What is ~ p? not all birds fly. If p: It is not cold. What is ~ p? it is cold. If ~ p: 2 + 2 =4. 2 + 2 not equal to 4. If ~ p: Two parallel lines never intersect.

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Lines that are parallel , in the sense of Euclidean geometry geometry of the plane are lines in the same plane that never intersect. In coordinate geometry the algebra of lines , they are lines with the same slope. Parallel lines exist in the same plane but do not intersect. Parallel lines have the same slope. In diagrams, we usually indicate that two or more lines are parallel by placing an arrow symbol on each line, as shown. There are two sets of parallel lines one consisting of three parallel lines, the other of two , and we use different arrow symbols to differentiate them, much as we'd use hash marks for congruent line segments. A transversal is a line or segment that cuts across two or more parallel lines, forming eight or more angles that we'll name below.

Solving Systems of Linear Equations by Graphing. Learning Objective s. Sometimes graphing a single linear equation is all it takes to solve a mathematical problem. This is often the case when a problem involves two variables. Solving these kinds of problems requires working with a system of equations , which is a set of two or more equations containing the same unknowns. Systems of Equations. A system of equations contains two or more linear equations that share two or more unknowns.

When you graph two or more linear equations in a coordinate plane, they generally cross at a point. However, when two lines in a coordinate plane never cross, they are called parallel lines. You will also look at the case where two lines in a coordinate plane cross at a right angle. These are called perpendicular lines. The slopes of the graphs in each of these cases have a special relationship to each other.

Please Enter a Question First. What is p?

## GEOMETRY LOGIC NEGATION?

If you're seeing this message, it means we're having trouble loading external resources on our website. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. Math Basic geometry Lines Parallel and perpendicular. Practice: Identify parallel and perpendicular lines. Drawing parallel line segments. Practice: Draw parallel and perpendicular lines.

## Parallel & perpendicular lines intro

In geometry , parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel. By extension, a line and a plane, or two planes, in three-dimensional Euclidean space that do not share a point are said to be parallel. However, two lines in three-dimensional space which do not meet must be in a common plane to be considered parallel; otherwise they are called skew lines. Parallel planes are planes in the same three-dimensional space that never meet. Parallel lines are the subject of Euclid 's parallel postulate.

A line is one of the basic terms in geometry. We may think of a line as a "straight" line that we might draw with a ruler on a piece of paper, except that in geometry, a line extends forever in both directions. We write the name of a line passing through two different points A and B as "line AB" or as , the two-headed arrow over AB signifying a line passing through points A and B. The arrows signify that the lines drawn extend indefinitely in each direction. A point is one of the basic terms in geometry. We may think of a point as a "dot" on a piece of paper. We identify this point with a number or letter.

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