| A stationary front is denoted by semicircles and triangles on alternate sides of the front. |
| The crown was crafted out of platinum and designed as three semicircles, one in the center and one on each side. |
| In other words, a semicircle and a family of abutting semicircles constructed on its diameter are isoperimetric. |
| It is well burnished only on the exterior body, which is decorated with a series of engraved ticked circles and semicircles. |
| The most ornamental part of doors was their heads, which took on various shapes, including triangles, semicircles or arcs. |
| On a weather map, a warm front is denoted by a line with red semicircles pointing in the direction of travel. |
