In this section we will discuss squares and square roots.
Square of a number and square numbers
The square of a number is that number raised to the power 2. Thus, if ‘a’ is a number, then the square of a is written as a2 and is given by a2 = a x a. That is, the square of a number is obtained by multiplying it by itself. If a x a = b i.e. a2 = b, then we say that the square of number a is number b or the number b is the square of number a.
For example : 1) 32 = 3 x 3= 9, so we say that the square of 3 is 9;
2) (-4)2 = -4 x -4 = 16, so we say that the square of -4 is 16;
3) (3/5)2 = (3/5) x(3/5) = 9/25 so we say that the square of (3/5) is 9/25;
Would you prefer to share this page with others by linking to it?
Click on the HTML link code below.
Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment,
your Facebook account, or anywhere that someone would find this page valuable.
var l = window.location.href,
d = document;
document.write('<form action="#"><div style="text-align:center"><textarea cols="50" rows="2" onclick="this.select();"><a href="'+l+'">'+d.title+'</a></textarea></div></form>');