Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:mathematical_concept
|
| gptkbp:appliesTo |
angles in circles
|
| gptkbp:category |
theorems in plane geometry
|
| gptkbp:contributedTo |
gptkb:Nasir_al-Din_al-Tusi
|
| gptkbp:field |
gptkb:geometry
|
| gptkbp:historicalPeriod |
13th century
|
| gptkbp:influencedBy |
gptkb:Euclidean_geometry
|
| gptkbp:namedAfter |
gptkb:Nasir_al-Din_al-Tusi
|
| gptkbp:relatedTo |
circle geometry
|
| gptkbp:sentence |
If a straight line intersects a circle and passes through its center, then the angle subtended by the chord at the center is twice the angle subtended at the circumference.
|
| gptkbp:bfsParent |
gptkb:Nasir_al-Din_al-Tusi
|
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
Al-Tusi's theorem
|