Understanding irrational numbers

Select all that are irrational.

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WHY is the

 $\sqrt{2}$  irrational?

• It CAN be written as a fraction.

• It CAN NOT be written as a fraction.

What is a irrational number

• A non-repeating and non-terminating decimal

• Can be turned into a fraction

• I don't know

Is π rational or irrational?

• Rational

• Irrational

• perfect square

• rational number

• irrational number

• repeating decimal

Which number is irrational?

 $\sqrt{200}$  

• Rational

• Irrational

A number that is less than 0 is called?

• Positive

• Less than 0

• Negative

• Small

Is the following a rational or irrational number?
 $\sqrt{26}$  

• Rational 

• Irrational

3.1415872041840219586..... 

• Rational

• irrational