How to find a Length of a Rectangle, when its Perimeter is given

Topic:Length of a Rectangle

Length is the longest or longer dimension of any object in distinction from breath or width or extent of anything from end to end the longest line which can be drawn through a body parallel to its sides
For example: length of a ship,rope or line.

Here is a example for you of a 10th grade math geometry

Question:

Find the length of the rectangle whose perimeter is 32feet and width is 6 feet?

Answer:

This purple math, guides step by step solution, like

Width is 6 feet
Perimeter is 32 feet
Length ?

32 = 2 (l + w)
divide both sides by 2

32     2 (l + w)
---- = ----
2     2 

16 = l + w
16 = l + 6
subtract 6 on both sides

16 - 6 = l
10 = l

Therfore lenght is 10 feet

For similar problems like this math help will guide you