| The types of shapes for which the area is calculated include triangles, rectangles, circles, trapeziums. |
| Depending on the plane of section, crystals may appear as triangles or other shapes in thin section. |
| This emblem was like vertical rhomb or diamond with a horizontal line in the middle, or two triangles joined together. |
| The waitresses served sandwiches cut into triangles of white bread, and wore those black and white uniforms. |
| He produced a number of formulas for triangles, two sides of which were straight lines and the third was the arc of a circle. |
| He arranges thin rectangles, squares, triangles and trapezoids in complex patterns on the wall. |
