Okay. Say, for example if you have a perimeter of 36 inches and your width is 8 inches.
Your equation you look like this set up:
P = 2L + 2W
36 = 2L + 2(8)
So,
multiply the width by 2 and then subtract that to the perimeter then divide the answer by 2 to get the length
Subtract two times the length from the perimeter and cut that answer in half.
Because the perimeter is lenght + length +width +width, you do perimeter - double the width, and then halve the remaining number. that should give you the length.
perimeter = 2 x (length + width) ⇒ length + width = perimeter ÷ 2 ⇒ length = (perimeter ÷ 2) - width So to find the length of the given rectangle, subtract the width from half the perimeter is how to do it. IF you meant "What is the length..." then: length = perimeter ÷ 2 - width = 40 ÷ 2 - 2 in = 20 - 2 in = 18 in
Length = (Perimeter - twice width) / 2
If you are given the width and the perimeter, then figure out what the length is then calculate the area... hope this helps :)
The width would be: P - (L*2) = W*2 Perimeter = P Length = L Width = W
by appying 2l+2w
All we can tell from the information you have given is that the length plus the width is 8.8...
Perimeter = 2*(L + W).
Given the available information, the length and width are indeterminate.
If the shape is a rectangle, then Perimeter = 2(Length + Width) So Width = Perimeter/2 - Length