Kata Kunci Pencarian:
- Lingkaran dalam dan lingkaran singgung luar segitiga
- Daftar topik geometri
- Incircle and excircles
- Feuerbach point
- Nine-point circle
- Triangle
- Power center (geometry)
- Circle
- List of two-dimensional geometric shapes
- Euclid
- Semiperimeter
- Right triangle
