Which of the following sentences are statement ? Justify your answer :
(1) `sqrt(5)` is a rational number.
(2)it is a cold day today.
(3)The product of 8 and 2 is 16.
(4)how many teachers are there in your school ?
(5)the sum of interior angles of a quadrilateral is `360^@`.
(6)go to your room.
(7)15 is smaller than 12.
(8)there are 7 days in a week.
(9)the earth revolves around the sun.
(10) 16 has two prime factros.
(11) the H.C.F. of 15 and 20 is 16.
(12)the L.C.M. of 8 and 12 is 24.
(13) the three sides of equilateral triangle are equal.
(14) New Delhi is the capital of india.
(15) six is a prime number.
(16) it was Saturday yesterday.
(17) the least natural number is one.
(18) maths is an easy subject.

Explanation

To determine which of the given sentences are statements, we need to understand what a statement is. A statement is a declarative sentence that can be classified as either true or false, but not both. Let's analyze each sentence one by one:

1. **`sqrt(5)` is a rational number.**
- This statement is false because `sqrt(5)` is an irrational number. However, it can be classified as a statement since it can be evaluated as true or false.
- **Conclusion:** Statement

2. **It is a cold day today.**
- This sentence cannot be classified as true or false universally because it depends on the context of the day being referred to. Therefore, it is not a statement.
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