The circumcircle of a triangle is the circle that passes through the three vertices. Its centre is the circumcentre, at which the perpendicular bisectors of the sides of the triangle are concurrent.
The circumcentre and circumcircle
- nickel(symbol: Ni)
- nickel–cadmium cell
- nickel–iron accumulator
- nickel–iron meteorite
- Nicod’s criterion
- Nicole, Pierre (1625–95)
- Nicolle, Charles Jules Henri
- Nicollier, Claude (1944– )
- Nicol prism
- nicol prism
- Nicol, William
- Nicol, William (1768–1851)
- Nicopolis, Battle of (23 September 1396)
- nicotinamide
- nicotinamide adenine dinucleotide
- nicotinamide adenine dinucleotide phosphate
- nicotine
- nicotinic
- nicotinic acid
- nictitating membrane
- nidation
- nidicolous
- nidifugous
- nido-structure
- nielsbohrium