What Is Surd Or Radical Real Number Line: Irrational numbers like √2, √3, √5 etc. can be represented by points on the number line. Since all rational numbers and irrational numbers can be represented on the number line, we call the number line as real number line.Surds: √2, √3, √5, √21, ................ are irrational numbers, These are square roots (second roots), of … [Read more...] about What Is Surd Or Radical