What is a Surd? (Junior Cert Mathematics): Quizzes

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What is a Surd?
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What is a surd?

A number left as a root giving an irrational number

What is true about irrational numbers in decimal form?

Infinitely long with no recurring pattern

Why is 5\sqrt{5} a surd?

It gives an irrational number

Surds can be which types of roots?

Square roots, cube roots, or other roots

Why do we use surds?

To write numbers precisely and accurately

Which of these is a rational number?

34\frac{3}{4}

Is 4\sqrt{4} a surd?

No, because it equals 2, a whole number

When is a root called a surd?

When it gives an irrational number

Which is an example of an irrational number?

π\pi

What does 'exact form' mean?

Leaving a number as a surd

What problem occurs if we round a surd too early?

The final answer might not be precise

Which of these is NOT a surd?

4\sqrt{4}

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