The symbol for congruent is a tilde above the equals sign. In mathematics, line segments, angles, triangles, and other figures can be congruent. In braille, the tilde symbol is formed with two cells: dot four in the first cell and dots three five in the second cell.Ĭongruent means exactly equal in size and shape. The print symbol used to denote similar to is a tilde (single wavy line). Geometric figures are considered to be mathematically similar when the measures of respective angles are equal and the measures of respective sides are in the same proportion. The braille symbol for approximately equal to is made with two cells dots four five in the first cell and dots three five in the second cell. Quantities are denoted as approximately equal to by the print symbol of a double tilde or two parallel wavy lines. When values are compared, they may be nearly equal but are not exactly equal or identical. Follow print for use and spacing of the angle symbol. The angle symbol is not considered a shape. The numeric indicator is required before the numeral that follows a sign of comparison.Ĭomplex algebraic equations are best enclosed in grade 1 passage indicators to ensure that letters standing alone and indicators such as superscript, subscript, fractions, radicals, arrows and shapes are well defined without the need for grade 1 symbol indicators. Lesson 8.1: Signs of Comparison: approximately equal to, similar to, congruent to SymbolsĪ blank space is left before and after a sign of comparison.

Squiggly equal sign