A RECTANGLE

The above shape is a shape of a rectangle.

It is named as rectangle ABCD

A rectangle is a four – sided flat shape. Every angle of a rectangle is a right angle (90°).

The following are the characteristics of the rectangle: Read More ...

APPROXIMATIONS

ROUNDING OFF NUMBERS

This is the procedure for approximation of any number so that it can be evaluated or read easy. For example you can be given a number with many decimals like 2.564879 or 12.789007 these are very complicated numbers, so in order to make them simple without changing their values approximation is introduced in so that we can read them and evaluate easily. From the given numbers above can be approximated to one decimal place as 2.6 and 12.8. But note that when you approximate any number it is not wrong but the number loose a little accuracy for example when given 5.6421 and round to one decimal place so that it becomes 5.6 and to two decimal places becomes 5.64, 5.64 is more accurate than 5.6  Read More ....