Understanding irrational numbers

The area of a square is 117 square meters. Which best represents the length of a side of the square?

• 10.8 m

• 11 m

• 10.9 m

• 11.2 m

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CCSS.8.NS.A.2

Rachel's neighborhood kid's pool is shaped like a square with an area of 120 feet squared. What is the approximate side length of the pool? (Think imperfect square)

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CCSS.8.NS.A.2

• 1.0

• 0.7

• 0.4

• 2.4

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CCSS.8.NS.A.2

Find the decimal approximation of √19.

Round to the nearest tenth.

• 4.35

• 4.4

• 4.358

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CCSS.8.NS.A.2

what is square root of 46?

• 6.78232998313

• 3.39116499156

• 2.26077666104

• 1.69558249578

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CCSS.8.NS.A.2

√225

• 13
• 16
• 18
• 15

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CCSS.8.NS.A.2

 $\sqrt{0.36}$  , $\sqrt{36}$ , and $\sqrt{3600}$ are all rational numbers.

• true 

• false

Tags

CCSS.8.NS.A.2

Which is the best rational approximation for  $\sqrt{55}$  ?

• 7.5

• 27.5

• 5.5

• 11.0

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CCSS.8.NS.A.2

Estimate the square root.

• 4
• 5
• 6
• 7

Tags

CCSS.8.NS.A.2

• True

• False

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CCSS.8.NS.A.2