HTML Entity for Spherical Angle (∢)

Beginner

5 min read

Updated: Sep 2026

1 example

Unicode U+2222

HTML Entity for spherical angle (U+2222) tutorial illustration

Definition

What Is Spherical Angle?

Spherical angle (∢) is the Unicode character at U+2222 in Mathematical Operators. Official name: SPHERICAL ANGLE. It is used in spherical geometry and related mathematical notation.

Remember

Character     ∢
Unicode       U+2222
Named entity  &angsph;
Hex entity    &#x2222;
Decimal       &#8738;
CSS escape    \2222
Not the same  ∠ · ∡ · ∟

Prefer &angsph; in HTML markup. You can also type ∢ in UTF-8, or use numeric forms when needed. For a plain plane angle, use &ang; (∠) instead.

Reference

Quick Reference

One table for every form you will actually use.

Form	Code	Where it goes
Named entity	`&angsph;`	HTML markup (preferred)
Direct character	`∢`	HTML text (UTF-8)
Hex entity	`∢`	HTML markup
Decimal entity	`∢`	HTML markup
CSS escape	`\2222`	Stylesheet `content`
Plane angle (related)	∠ (U+2220)	Named `&ang;`

When to Use Which

Situation	Use
Spherical geometry angle	`&angsph;` or type `∢`
General plane angle	∠ (`&ang;`)
Measured angle	∡ (`&angmsd;`)
Right angle	∟
Generated text via `::before` / `::after`	`content: "\2222"`

See it

Live Preview

Spherical angle rendered alone and next to related angle symbols.

Large glyph ∢

Notation Spherical triangle: ∢ABC

Compared ∢ (spherical) | ∠ (plane) | ∡ (measured)

Hint Compare: Plane ∠ vs spherical ∢

With entities Named: ∢ | Hex: ∢ | Decimal: ∢

Code

Complete HTML Example

One page that shows the spherical angle with named, hex, decimal, CSS escape, and a typed character. Use View Output or open the live editor.

Named + Hex + Decimal + CSS + Typed

Five ways to produce ∢, plus a comparison with the plane angle.

html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Spherical Angle (∢) in HTML</title>
  <style>
    #point::after {
      content: "\2222";
    }
  </style>
</head>
<body>
  <p>Using Named Entity: &angsph;</p>
  <p>Using Hex Code: &#x2222;</p>
  <p>Using HTML Code: &#8738;</p>
  <p id="point">Using CSS Entity: </p>
  <p>Typed directly: ∢</p>
  <p>Compare: Plane &ang; vs spherical &angsph;</p>
</body>
</html>

Try It Yourself

How It Works

1. Named: &angsph; is the HTML5 name for U+2222 → ∢. Best default in markup.

2. Hex: U+2222 → ∢ in HTML. Same glyph as the named form.

3. Decimal: same code point as 8738 → ∢. Same result as hex and named.

4. CSS: use \2222 in content (not an HTML entity). #point::after appends that ∢ after the paragraph text.

5. Typed / compare: paste ∢ in UTF-8, or contrast &ang; (plane) with &angsph; (spherical).

Pitfalls & Tips

Common mistakes when working with &angsph;.

vs ∠

Not a plane angle

U+2220 (∠, &ang;) is the common plane angle. U+2222 is specifically spherical.

vs ∡

Not measured angle

∡ (U+2221, &angmsd;) marks a measured angle. Do not swap it with &angsph;.

Name

Remember &angsph;

The named entity is &angsph; — not &ang; (that is U+2220).

CSS vs HTML

Do not mix escapes

\2222 belongs in CSS strings. &angsph; / ∢ / ∢ belong in HTML.

Semicolon

End named entities

Always finish with ; — write &angsph;, not &angsph.

A11y

Name the symbol in context

Screen readers may announce “spherical angle” unevenly. Add nearby text when the glyph carries meaning alone.

Compatibility

Browser Support

Spherical angle (U+2222) and its entity forms (&angsph;, ∢, ∢, CSS \\2222) are supported in all mainstream browsers. Visible glyphs depend on Mathematical Operators font coverage.

✓ Universal support

Spherical Angle (∢)

Encode with named, hex, decimal, CSS escape, or type the character — same code point everywhere encoding is supported.

100% Browser coverage

Google Chrome Supported

Yes

Microsoft Edge Supported

Yes

Mozilla Firefox Supported

Yes

Apple Safari Supported

Yes

Opera Supported

Yes

Internet Explorer All versions

Yes

U+2222 / entities Full support

Bottom line: Prefer &angsph; in HTML. Use ∢ / ∢ when numeric form is required, and \\2222 only inside CSS content.

Remember

Key Takeaways

Unicode: spherical angle is U+2222 (decimal 8738) — glyph ∢.
HTML: prefer &angsph; — also ∢ / ∢ / type ∢.
CSS: use \2222 inside content for generated text.
Meaning: ∢ is spherical — not ∠ (&ang;), not ∡.

One line: U+2222 → &angsph; / ∢ / ∢ / CSS \2222.

Frequently Asked Questions

How do I display ∢ in HTML?

Use &angsph; (named), ∢ (hex), ∢ (decimal), type ∢ directly in UTF-8, or the CSS escape \2222 in content. Prefer &angsph; in normal HTML.

What is the Unicode value for spherical angle?

U+2222 (SPHERICAL ANGLE). Hex 2222, decimal 8738. It belongs to Mathematical Operators (U+2200–U+22FF).

Is there a named HTML entity for U+2222?

Yes. Use &angsph;. Numeric forms ∢ and ∢ also work.

Is ∢ the same as ∠ or ∡?

No. ∢ is U+2222 (&angsph;), a spherical angle. ∠ is U+2220 (&ang;). ∡ is U+2221 (&angmsd;).

When should I use &angsph;?

Use it in spherical geometry, astronomy, and academic content that needs a spherical-angle symbol — not as a substitute for the plain plane angle ∠.

What is the difference between HTML code and CSS entity for U+2222?

HTML entities (&angsph;, ∢, or ∢) go in markup. The CSS escape \2222 goes in stylesheet strings (usually content on ::before/::after).

Did you know?

Spherical angle is Unicode U+2222 (decimal 8738) — glyph ∢ in Mathematical Operators (U+2200–U+22FF). HTML5 names it &angsph;. Official name: SPHERICAL ANGLE. Do not confuse with plane angle U+2220 (&ang;, ∠) or measured angle U+2221 (&angmsd;, ∡).

Next: Square Below

Learn the HTML entity for combining square below (U+033B).

Square below tutorial →

About the author

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.

AWS Certified Developer – Associate (Credly)

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