Acute Angle Symbol
⦟ is the acute angle symbol (Unicode U+299F) used to denote an angle smaller than 90°.
U+299F
The symbol ⦟ represents an acute angle. It’s commonly used in math notes, diagrams, and typography where precise angle notation matters. This page gives copy-friendly options and practical usage ideas.
Acute Angle Symbol Meaning
⦟ is named “ACUTE ANGLE” in Unicode (U+299F). In geometry, an acute angle is an angle measuring less than 90°. The notation is often used in textbooks, worksheets, and digital documents to label angles in diagrams, proofs, and explanations. Because it’s a Unicode character, it can be copied into plain text, math-focused writing, and design layouts without needing an image. Use it when you want a compact, readable angle label—especially in contexts where you need consistent typographic styling across devices.
Common uses
- •Labeling acute angles in geometry diagrams and classroom worksheets
- •Annotating angles in technical notes and study materials
- •Writing math explanations in documentation, blogs, or presentations
- •Formatting icons or UI hints for angle-related tools and apps
- •Using as a typographic marker in educational graphics
Examples
⦟ Acute Angle Symbol
- ⦟∠ABC is an ⦟ (acute angle).
- ⦟The figure shows two angles: an obtuse angle and an ⦟.
- ⦟In triangle ABC, angle A is ⦟, so it is less than 90°.
- ⦟Mark all ⦟ angles in the diagram and compare their measures.
- ⦟For a quick label: ⦟ indicates an acute angle.
Variations
Ready to copy
Technical codes
| Unicode | U+299F | |
| HTML Entity | ⦟ | |
| HTML Code | ⦟ | |
| CSS | \299F | |
| Alt Code | Alt + 10655 | |
| Decimal | 10655 |
How to type Acute Angle Symbol (⦟)
On Windows
Hold Alt and type 10655 on the numeric keypad. In Word, type 299F then press Alt + X.
On Mac
Switch to the Unicode Hex Input keyboard, then hold Option and type 299F. Or press Control + Command + Space and search.
On Linux
Press Control + Shift + U, type 299f, then press Enter or Space.
Anywhere
Copy ⦟ with the button above and paste it wherever you need it — this works on every device and in every app, with no keyboard shortcut to remember.
FAQ
What does ⦟ mean?
⦟ is the “acute angle” symbol, used to denote an angle smaller than 90°.
What is the Unicode code point for ⦟?
The Unicode code point is U+299F.
How can I copy ⦟ into my document?
Copy the character directly from this page, or paste its numeric HTML entity: ⦟.
Will ⦟ display correctly on all devices?
It should work wherever the font supports Unicode Math Symbols. If it appears as a box, try another Unicode-capable font.