here is a rectangle with a width of 15.7 centimtres the perimeter of this rectangle is 85 centimetres calculate the lengh of the rectangle
About 5.4 cm ^2. (decimal keeps on repeating with different numbers). P=lw Since the perimeter is 85 cm, and the width is 15.4, you substitude and solve to get 15.7x=85. Do the same for both sides (divide 15.7) and you get x= about 5.4. God Bless! <3
To calculate the length of the rectangle, we can use the formula for the perimeter of a rectangle, which is given by the equation:
Perimeter = 2 * (Length + Width)
Given that the width of the rectangle is 15.7 centimeters and the perimeter is 85 centimeters, we can substitute these values into the equation:
85 = 2 * (Length + 15.7)
To solve for the length, we need to isolate the term containing the length. Let's start by dividing both sides of the equation by 2:
85/2 = Length + 15.7
This simplifies to:
42.5 = Length + 15.7
Next, let's isolate the length by subtracting 15.7 from both sides of the equation:
42.5 - 15.7 = Length
This simplifies to:
26.8 = Length
Therefore, the length of the rectangle is 26.8 centimeters.