Calculating Squares

What number squared is 9?

• 9

• 18

• 3

• 81

169

• Is a perfect square.

• Is not a perfect square.

Which of the following is a perfect square?

• 39

• 50

• 24

• 81

If I know the area of a square, how do I find the side length?

• I square the area.

• I divide the area by 2.

• I take the square root of the area.

• I divide the area by 4.

17² =

• 34

• 289

• 225

• 324

What is the perimeter of a square with a side of 3?

• 9

• 12

• 6

• 24

The area of a square picture frame is 100 cm².  What is the perimeter of the frame?

• 25 cm

• 10 cm

• 40 cm

• 50 cm

A perfect square is a number whose square root is ___________.

• even

• a never-ending

  (non-terminating) decimal

• rational

• odd

x² = 121
What does x equal?

• 11²

• 11 and -11

• 20 and 11

• 12 and 1

What is the square root of 289?

• 13

• 140

• 17

• 18