Perfect Square Numbers and Square Roots

What is the square root of 144?

• 4

• 12

• 16

• 32

The √20 is between which two integers?

• 2 & 3

• 3 & 4

• 4 & 5

• 5 & 6

The √40 is between which two integers?

• 7 & 8
• 6 & 7
• 5 & 6
• 4 & 5

65

• Is a perfect square.
• Is not a perfect square.

169

• Is a perfect square.
• Is not a perfect square.

If a square has a side length of 5 cm, what would the area be?

• 55 cm²
• 50 cm²
• 25 cm²
• 20 cm²

What would be the side length if you used 49 tiles to create a perfect square?

• 7 tiles
• 14 tiles
• 4 tiles wide and 9 tiles long
• 3.5 tiles

What is the square root of -144?

• + 12

• 12

• -12

• not real

Which is a perfect square?

• 50

• 32

• 8

• 200

• 256

-√400

• 200

• -200

• -20

• 20

• not real