HTML Entity for Right Angle Arc (⊾)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+22BE

What You'll Learn

How to display the Right Angle Arc symbol (⊾) in HTML using numeric references, the named entity, and CSS escapes. This character is U+22BE (RIGHT ANGLE WITH ARC) in the Mathematical Operators block (U+2200–U+22FF)—used in geometry, mathematical notation, and academic documentation to denote a right angle marked with an arc.

You can use the named entity ⊾, hex ⊾, decimal ⊾, or CSS \22BE. Do not confuse ⊾ with U+221F (∟, plain right angle) or U+2220 (∠, general angle).

⚡ Quick Reference — Right Angle Arc

Unicode U+22BE

Mathematical Operators (U+2200–U+22FF)

Hex Code ⊾

Hexadecimal reference

HTML Code ⊾

Decimal reference

Named Entity ⊾

Standard HTML entity

Reference Table
Name           Value
────────────   ──────────
Unicode        U+22BE
Hex code       ⊾
HTML code      ⊾
Named entity   ⊾
CSS code       \22BE
Meaning        Right angle with arc
Related        U+221F = right angle (∟)
               U+2220 = angle (∠)
               U+2221 = measured angle (∡)
Block          Mathematical Operators (U+2200–U+22FF)
1

Complete HTML Example

A simple example showing ⊾ using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point::after{
   content: "\22BE";
  }
 </style>
</head>
<body>
<p>Right angle arc (hex): &#x22BE;</p>
<p>Right angle arc (decimal): &#8894;</p>
<p>Right angle arc (named): &angrtvb;</p>
<p id="point">Right angle arc (CSS): </p>
</body>
</html>
Try it Yourself

🌐 Browser Support

U+22BE is widely supported in all modern browsers:

Chrome1+
Firefox1+
Safari1+
Edge12+
Opera4+
Android4.4+
iOS Safari1+

👀 Live Preview

See the Right Angle Arc symbol (⊾) in geometric contexts:

Single symbol
Geometry ⊾ right angle with arc notation
Compare angles Right ∟   Arc ⊾   Angle ∠
Named entity &angrtvb;
Numeric refs &#x22BE; &#8894; \22BE

🧠 How It Works

1

Hexadecimal Code

&#x22BE; uses Unicode hex 22BE to display the right angle with arc symbol.

HTML markup
2

Decimal HTML Code

&#8894; is the decimal equivalent (8894) for the same character.

HTML markup
3

Named HTML Entity

&angrtvb; is the standard named entity for U+22BE—readable in HTML source.

HTML markup
4

CSS Entity

\22BE is the CSS escape for U+22BE, used in pseudo-element content.

CSS stylesheet
=

Same visual result

All four methods produce . Unicode U+22BE in Mathematical Operators. Next: Right Arrow.

Use Cases

The Right Angle Arc symbol (⊾) is commonly used in:

🔢 Geometry

Diagrams and proofs marking right angles with arc notation.

📝 Mathematics

Formal expressions involving perpendicular lines and arc marks.

📖 Academic writing

Research papers, math journals, and scholarly publications.

💬 Engineering

Technical drawings, specifications, and CAD documentation.

📋 Unicode references

Character pickers, entity documentation, and math symbol guides.

♿ Accessibility

Pair ⊾ with descriptive text or MathML when used as a meaningful symbol.

💡 Best Practices

Do

  • Use &angrtvb; for readable right angle arc markup
  • Set <meta charset="utf-8"> for reliable rendering
  • Use ⊾ for arc-marked right angles—not plain right angle ∟
  • Link to Right Angle when documenting related symbols
  • Pick one reference style per project for consistency

Don’t

  • Confuse ⊾ with ∟ (right angle) or ∠ (angle)
  • Use padded Unicode notation like U+022BE—the correct value is U+22BE
  • Use CSS escape \22BE in HTML text nodes
  • Substitute ∟ when arc notation (⊾) is required
  • Assume every font renders Mathematical Operators identically

Key Takeaways

1

Four ways to render U+22BE in HTML and CSS

&angrtvb; &#8894;
2

For CSS stylesheets, use \22BE in the content property

3

Unicode U+22BE — RIGHT ANGLE WITH ARC (⊾)

4

Distinct from right angle ∟, angle ∠, and measured angle ∡

5

Previous: Right Angle (∟)   Next: Right Arrow

❓ Frequently Asked Questions

Use &angrtvb; (named entity), &#x22BE; (hex), &#8894; (decimal), or \22BE in CSS content. All four render ⊾.
U+22BE (RIGHT ANGLE WITH ARC). Mathematical Operators block (U+2200–U+22FF). Hex 22BE, decimal 8894.
No. ⊾ (U+22BE) is right angle with arc. ∟ (U+221F) is the plain right angle. They are different Unicode characters.
For geometry, mathematical notation, academic documentation, technical writing, geometric proofs, and engineering diagrams involving right angles with arc notation.
&angrtvb; is the standard named entity for U+22BE and is the most readable option in HTML source.

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About the author

Mari Selvan M P
Mari Selvan M P 🔗

Developer, cloud engineer, and technical writer

  • Experience 12 years building web and cloud systems
  • Focus Full Stack Development, AWS, and Developer Education

I write practical tutorials so students and working developers can learn by doing—from databases and APIs to deployment on AWS.

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