- Al-Karak (Arabic: الكرك) is a city in Jordan known for its medieval castle, the Kerak Castle. The castle is one of the three largest castles in the region, the other two being in Syria. Al-Karak is the capital city of the Karak Governorate.
- Circle (Wikipedia)
A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre. The distance between any point of the circle and the centre is called the radius.