# What is a square corner?

**What is a square corner?**In

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A **square corner** has a 90-degree angle. A perfect **square** or rectangle has four **corners** that each measure 90 degrees. The frame is held **square** by the packaging it is sold in. Equal diagonal measurements of a **square** or rectangle will verify that the **corners** are right angles or 90 degrees.

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Keeping this in consideration, what is the corner of a square called?

Vertex typically means a **corner** or a point where lines meet. For example a **square** has four **corners**, each is **called** a vertex. The plural form of vertex is vertices.

Subsequently, question is, what is the 3 4 5 rule for squaring corners? **3**–**4**–**5 Rule** Layman’s Terms: If the short side of the triangle is **3** feet, and the leg that extends from it 90 degrees is **4** feet, the hypotenuse, or longest leg, will be **5** feet. This technique simply requires that the carpenter create a triangle in the **corner** of the lines that are to be **square** (90 degrees) to each other.

Besides, how do you know if a corner is square?

Using the 3-4-5 Rule. Understand the 3-4-5 method. **If** a triangle has sides measuring 3, 4, and 5 feet (or any other unit), it must be a right triangle with a 90º angle between the short sides. **If** you can “find” this triangle in your **corner**, you **know** the **corner is square**.

How long is a square corner to corner?

The distance from one **corner** of a **square** to the opposite **corner** is sometimes called the diagonal. A **square** is most often characterized by S, the **length** of a side. and is given by 2^{1}^{/}^{2}S or 1.41S.

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