Understanding irrational numbers

Simplify completely:

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What is the  $\sqrt{361}$  ? 

 $^3\sqrt{27}$  

• 9

• 3

• 81

• 6

Find the square root of √144.

• 18

• 6

• 12

• 24

 $\sqrt{169}$  

• 13

• 14

• 15

• 16

√ 81

• 8 and -8

• 7 and -7

• 10 and -10

• 9 and -9

 $\sqrt{289}$