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##### Asked by: Margurite Valade

science space and astronomy# What is a mirror line?

Last Updated: 26th April, 2020

**mirror line**is a

**line**which can be drawn onto a shape to show that both sides have exact reflective symmetry.

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Also, what is Mirror line in maths?

In **math**, reflection is the flipping of a figure or a point over a **line** of reflection called the **mirror line**. When we **reflect** something over a **mirror line** it does not change size, and it faces the other way.

One may also ask, how do you fully describe a reflection? A **reflection** is like placing a mirror on the page. When **describing a reflection**, you need to state the line which the shape has been **reflected** in. The distance of each point of a shape from the line of **reflection** will be the same as the distance of the **reflected** point from the line.

Also asked, does every figure have a mirror line?

Reflectional Symmetry A **figure** may **have** both horizontal and vertical **lines** of **reflection**. An object and its image are always at the same distance from the surface of a **mirror**, which **is** called the **mirror line**. **Line** symmetry and **mirror reflection** are naturally related and linked to **each** other.

Which word has Reflectional symmetry across a horizontal line?

The same **is** true of the letter M. Letters like B and D **have** a **horizontal line** of **symmetry**: their top and bottom parts match. Some letters, for example, X, H, and O, **have** both **vertical** and **horizontal lines** of **symmetry**. And some, like P, R, and N, **have** no **lines** of **symmetry**.