# Category:Euclidean Geometry

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This category contains results about **Euclidean Geometry**.

Definitions specific to this category can be found in Definitions/Euclidean Geometry.

Euclidean geometry is the branch of geometry in which the parallel postulate applies.

An assumption which is currently under question is whether or not ordinary space is itself Euclidean.

**Euclidean geometry** adheres to Euclid's postulates.

## Source of Name

This entry was named for Euclid.

## Subcategories

This category has the following 45 subcategories, out of 45 total.

### A

- Angle Bisector Vector (4 P)

### C

### D

- Decagons (3 P)
- Doubling the Cube (11 P)

### E

- Euclid Book II (14 P)
- Euclid Book III (37 P)
- Euclid Book IV (16 P)
- Euclid Book IX (38 P)
- Euclid Book V (30 P)
- Euclid Book VI (36 P)
- Euclid Book VII (48 P)
- Euclid Book VIII (29 P)
- Euclid Book X (134 P)
- Euclid Book XI (42 P)
- Euclid Book XII (25 P)
- Euclid Book XIII (23 P)
- Euclid Book XIV (11 P)

### G

### H

### L

### P

- Pentagons (13 P)
- Pentagrams (2 P)
- Point at Infinity (1 P)

### Q

### R

### S

- Squaring the Circle (5 P)

### T

- Tarski's Geometry (3 P)
- Trisecting the Angle (18 P)

### W

- Westwood's Puzzle (3 P)

## Pages in category "Euclidean Geometry"

The following 19 pages are in this category, out of 19 total.