Question

Which of the following is an irrational number?A. πB. -16/3C. 2.6D. 18

Answer 1

Answer:

Option A -  $\pi$      

Step-by-step explanation:

To find : Which of the following is an irrational number?

Solution :

Irrational number is defined as number which cannot be written in the form is p/q where p and q are integers and q is non-zero.

Irrational number is non-repeating and non-terminating.

A) $\pi$

The value of pi is $\pi=3.14159265..$

The number is non-terminating and non-repeating.

So, $\pi$  is an irrational number.

B) $-\frac{16}{3}$

The number is written in p/q form so it is rational number.

C) $2.6=\frac{26}{10}$

The number is written in p/q form so it is rational number.

D) 18

The number is a rational number.

Therefore, Option A is correct.

Answer 2

Which of the following is an irrational number?

A. π