Answer :
When finding the square root of any number there is is the + and - root
when using this information to solve a problem only the positive root is used
you can't solve involving measurements using the - root
hope this helps
Answer:
Given: Square root of 25 .i.e., [tex]\sqrt{25}[/tex]
When we find the [tex]\sqrt{25}[/tex] . we get 2 answers that are +5 , -5
As, [tex](+5)^2 = 25[/tex] . Also [tex](-5)^2=25[/tex]
but while selecting value for radius we choose positive value of [tex]\sqrt{25}[/tex] .i.e, +5 because Radius of circle should be a positive value as it is a Length.
