11-1 Square Roots

 $-\sqrt{25}$  

Find the perimeter of a square whose area is 49 square inches?

Find the perimeter of a square whose area is 100 sq m.

Find the value of  $\sqrt{3^2+4^2}$  

Find the value of  $\sqrt{12^2+5^2}$  

 $-\sqrt{10^2}$  

CHALLENGE QUESTION: Can you take the square root of a negative number?

CHALLENGE QUESTION: Can the square root of a number be negative?