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Is √(20.25) rational or irrational?
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9 votes
Is
√(20.25) rational or irrational?

User Egvo
by
7.3k points

1 Answer

7 votes

Answer:

Rational

Explanation:

Here, we want to check if the given value is rational or irrational

If a certain number is a non -perfect square, and it is placed inside the root, then it is a surd and thus termed irrational

However, the number 20.25 is a perfect square. in fact the square root is 4.5

This mean the expression is not irrational

User Sequence
by
6.7k points
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