Surds What is a surd. 2.0 / 5 based on 3 ratings ? MathematicsAll Levels Created by: sophieCreated on: 06-04-11 17:08 Surds. Roots of rational numbers which cannot be expressed as rational numbers are called surds. A surd is an irrational number. EXAMPLES - √2, √0.37, 3√10, 3+√2 , √7 Numbers like √64, √0.25, 3√27 are not surds because the roots of each number is rational. 1 of 1
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