Two or more lines lying in the very same airplane that tfinish to meet each other at infinity are well-known as parallel lines. In other words, two or more lines are said to be parallel lines if they execute not intersect each various other or carry out not accomplish each various other at any type of point.

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## Properties of Parallel Lines

1. Two lines parallel to each other recurrent a pair of linear equations in two variables that do not possess a consistent solution.

2. The slopes of 2 parallel lines are equal.

3. Parallel lines are equidistant from each other.

4. When a transversal line intersects or cuts two parallel lines:

The resultant equivalent angles are equal.The vertically oppowebsite angles so formed are equal.The alternative inner angles are equal.The alternative exterior angles are equal.The sum of the pair of inner angles on the same side of the transversal is supplementary or is equal to 180°.

## Instances of Parallel Lines

### 1. Railmethod Tracks

If you are trying to find a real-life application of parallel lines, you should very closely observe the railmeans tracks. The iron bars that comprise the tracks are laid parallel to each other. In a similar manner, the sleepers are likewise put parallel to each other.

### 2. Edges of a Ruler

A ruler is used to draw directly lines and various other numbers. If a line is traced along one side of the leader and another line is attracted making use of the opposite side, the resultant lines will be parallel to each other. Hence, both the oppowebsite sides of the ruler are parallel to each various other.

### 3. Zebra Crossing

A pedestrian crossing or a zebra crossing is a part of the road that is painted with white stripes. These white stripes are parallel to each other.

### 4. Cricket Stumps

One of the significant examples of parallel lines is the cricket stumps. All the 3 stumps of a wicket, namely the off stump, middle stump, and also leg stump, are inserted at equal distances and are parallel to each other.

### 5. Electrical Wires

The electric power created by the powerhome reaches our dwellings with the help of the wires attached to the electricity poles. These wires have the right to be quickly watched alengthy the roadside. The wires are separated from each other at a distance and also are parallel to each various other. Hence, the electric wires placed between the powerhouse and the houses constitute a perfect instance of parallel lines in real life.

### 6. Racing Tracks

Racing tracks that are properly noted via broad white stripes of paint or powder constitute one of the finest examples of parallel lines in actual life. These white stripes are plainly parallel to each other.

Road marmonarchs are essential to boost safety and security while driving. These markings encompass road shoulder line, centre line marking, kerb noting, website traffic lane noting, and so on One can easily observe the visibility of parallel lines in actual life by looking at such markings on the road.

### 8. Ruled Paper

The lines published on a ruled paper are equiremote from each various other. These lines tfinish to fulfill each various other at infinity. Hence, the lines of a ruled paper are a prominent instance of parallel lines in day-to-day life.

### 9. Fork Tines

The tines of a fork are parallel to each various other. Hence, if you visualize each tine of the fork as a directly line, a fork constitutes a perfect example of parallel lines.

### 10. Steps of a Ladder

The procedures of a ladder are equiremote from each other at eexceptionally instant. Also, the slope of all the steps is the exact same. Hence, they are parallel to each other.

### 11. Railing Bars

Many of the railings or fences consist of straight-line equiremote metallic or wooden bars that are placed parallel to each various other.

### 12. Keys of a Piano

If you look at the orderly arranged keys of a piano, every one of them are parallel to each other. Hence, the keys of a piano are a timeless example of parallel lines.

### 13. Stack of Books

If you create a pile or a stack of publications by placing one book on peak of one more, you deserve to conveniently observe the presence of parallel lines in actual life. The height and the base of the publications act as parallel lines to each other.

### 14. Table

The oppowebsite sides of a rectangle or a square geometric number are parallel to each other. Ergo, the sides of a rectangular or square-shaped table show the presence of parallel lines in actual life.

### 15. Pins of a Plug

The pins of a two-pin or a three-pin plug are parallel to each other. Hence, they deserve to be thought about as explicit example of parallel lines.

### 16. Skis

Skis are long and tapered boards made up of versatile products such as polyethylene, fibreglass, carbon fibres, etc. When a person fas10s the ski boards under his/her feet and slides down the snowy surchallenge, he has a tendency to store his feet aligned in a parallel position. Hence, parallel lines in genuine life deserve to be oboffered by looking at the pair of skis.

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### 17. Shelves of a Rack

A shoe rack, pallet rack, book rack, and so on, consist of multiple shelves to save objects. The shelves are arranged parallel to each other. Hence, the shelves of a rack are yet an additional instance of parallel lines in daily life.