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Part 1
A rectangle has perimeter 86cm and 36cm length . What is its width?
To find the width of a rectangle, we can use the formula for perimeter:
Perimeter = 2(length + width)
We are given that the perimeter is 86 cm and the length is 36 cm.
So, we can substitute these values into the formula:
86 = 2(36 + width)
Now, let's solve for the width:
86 = 72 + 2(width)
86 - 72 = 2(width)
14 = 2(width)
Divide both sides by 2:
7 = width
Therefore, the width of the rectangle is 7 cm.
To find the width of a rectangle, we need to know the length and perimeter of the rectangle.
Given:
Perimeter of the rectangle = 86 cm
Length of the rectangle = 36 cm
Let's assume the width of the rectangle as "x" cm.
The formula to find the perimeter of a rectangle is: Perimeter = 2(Length + Width)
Substituting the given values in the formula:
86 = 2(36 + x)
Now, let's solve for "x":
86 = 72 + 2x
86 - 72 = 2x
14 = 2x
x = 14/2
x = 7
So, the width of the rectangle is 7 cm.
To find the width of the rectangle, we need to use the formula for the perimeter of a rectangle, which is:
Perimeter = 2(length + width)
In this case, we are given that the perimeter is 86cm and the length is 36cm. Plugging these values into the formula, we can solve for the width.
86cm = 2(36cm + width)
To solve for the width, we can start by simplifying the equation:
86cm = 72cm + 2(width)
Next, we can isolate the width by subtracting 72cm from both sides:
86cm - 72cm = 2(width)
14cm = 2(width)
To find the width, we can divide both sides by 2:
14cm/2 = width
7cm = width
Therefore, the width of the rectangle is 7cm.