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What is the length of a rectangle if the perimeter is 100ft and the width is 20ft?
The perimeter of a rectangle is the sum of all of the sides. That is, length + width + length + width, or 2*length + 2*width.
So the total width of the two widths is 20 + 20 = 40ft.
By subtracting the total width from the perimeter, we can find the total length. 100 - 40 = 60ft. Because there are two lengths in a rectangle, to find one we must divide by two.
60/2 = 30ft.
The length is 30 ft.
This problem can also be done algebraically.
As an algebraic equation, 2L + 2W = P
We know W = 20 and P = 100. 2L + 2*[20] = [100]
By multiplication, 2L + 40 = 100
By subtraction, 2L = 100 - 40.
2L = 60
By division, L = 60/2
L = 30ft
What else can I help you with?
How can you get the width when you have the perimeter and the length?
If the shape is a rectangle, then Perimeter = 2(Length + Width) So Width = Perimeter/2 - Length
What measurements do you need to find the area and perimeter of a rectangle how would you use these measurements to find the area and perimeter of a rectangle?
you need length and width length multiply width = area length + length + width + width = perimeter
What is one different way to to find the perimeter of a rectangle?
Length + length + width + width = perimeter. Length + width x 2 = perimeter
How do you find the length of a rectangle if the perimeter is 40 and the width is 2inches?
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
How do you find the width of a rectangle if you know the perimeter and the length?
Perimeter = 2 * width + 2 * length, so rearranging --> width = (Perimeter / 2) - length
What is a perimeter of a recangular?
Perimeter is Length + width x 2 or Length + length + width + width. This is perimeter for any shape including a rectangle. Perimeter of a rectangle is all sides added together for a rectangle.
How can you get the width when you have the perimeter and the length?
If the shape is a rectangle, then Perimeter = 2(Length + Width) So Width = Perimeter/2 - Length
What is the perimeter of a rectangle whose length is 5cm with a width of 6cm?
The perimeter of a rectangle whose length is 5cm wit a width of 6cm is 22cm
The width of a rectangle is one half its length The perimeter of the rectangle is 54cm What are the width and length of the rectangle?
The length of the rectangle is 18cm. The width of the rectangle is 9cm.
The length of a rectangle is twice its width If the perimeter of the rectangle is 54y find its area?
The length of a rectangle is twice its width. If the perimeter of the rectangle is , find its area.
What is the rule for the perimeter of a rectangle?
The perimeter of a rectangle is found by the following formula: (Length x 2) + (Width x 2) or Length + Length + Width + Width.
What is the perimeter of a rectangle that is 1.6 meters long and 0.8 meters wide?
Perimeter of rectangle = 2 x (length + width) = 2 x (1.6 + 0.8) = 2 x 2.4 = 4.8 meters
The length of a rectangle is 5 more then the width Find the perimeter and the area of the rectangle?
the length of a rectangle is 5 more then the width. Find the perimeter and the area of the rectangle
What measurements do you need to find the area and perimeter of a rectangle how would you use these measurements to find the area and perimeter of a rectangle?
you need length and width length multiply width = area length + length + width + width = perimeter
What is one different way to to find the perimeter of a rectangle?
Length + length + width + width = perimeter. Length + width x 2 = perimeter
How do you find the length of a rectangle if the perimeter is 40 and the width is 2inches?
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
The width of a rectangle is one half its length the perimeter of the rectangle is 54 cm what are the width and length of the rectangle?
width=9 length=18
