The home base may be a square, a rectangle, or a semicircle. Lower boundary of abdomen assumes shape of small semicircle or deep curve. The final popular desk arrangement is the circle/semicircle placement. Synthronons are rows of built benches that are arranged in a semicircle in the apse. Nine flags are arranged in a semicircle around the cenotaph. A segmental arch is an arch that is less than a semicircle. The Black Mountains form a J-shaped semicircle that opens to the northwest. They also cooperate, blocking migrating fish by forming a semicircle across the river. The arch is a perfect semicircle in width and in height. Wicklow town forms a rough semicircle around Wicklow harbour. Its graph is the upper semicircle centered at the origin. The palace once formed the centre point of a semicircle of round buildings. This makes the cervical line appear as a semicircle in shape. The Ottoman forces were inside a semicircle. It consists of 15 wigwams used as guest rooms that are arranged in a semicircle.