# Classify the Following Number as Rational Or Irrational :- Sqrt23 - Mathematics

Classify the following number as rational or irrational :-

sqrt23

#### Solution

Let

x = sqrt23

x = 4.79583...

It is non-terminating or non-repeating

Hence sqrt23 is an irrational number

Concept: Real Numbers and Their Decimal Expansions
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#### APPEARS IN

RD Sharma Mathematics for Class 9
Chapter 1 Number Systems
Exercise 1.4 | Q 3.1 | Page 31
NCERT Class 9 Maths
Chapter 1 Number Systems
Exercise 1.3 | Q 9.1 | Page 14