Random triples
| Subject | Object |
|---|---|
| gptkb:Pappus–Guldinus_theorem | centroid of a curve |
| gptkb:Pappus–Guldinus_theorem | centroid of a plane area |
| Subject | Object |
|---|---|
| gptkb:Pappus–Guldinus_theorem | centroid of a curve |
| gptkb:Pappus–Guldinus_theorem | centroid of a plane area |