Symbols  Meaning  Symbols  Meaning 
√ < > ≠ = ≡ ≈ ≤ ≥ ÷ × + − ∠ ° π A m S.A. L.A B V ^ DABC 
square root less than greater than not equal equal equivalent approximately smaller or equal bigger or equal division multiplication addition subtraction angle degree pi (3.14) area slope of a line surface area lateral area area of base volume perpendicular triangle ABC 
⁄ ∟ % ± GCF LCM  a : b a^{n}    () b h p or P l w C a d b_{1}, b_{2} r ∠ABC m∠ABC 
fraction bar right angle sign percent sign plus or minus sign greatest common factor least common multiple divides ratio a to the nth power parallel lines sign for absolute value parentheses for grouping base length height perimeter Length or slant height width circumference opposite of a diameter or distance base lengths of a trapezoid rate or radius angle ABC refers to the measure of angle ABC 
