the perimeter of the rectangle is 294cm, the width is 57 cm, find the length
To find the length of the rectangle, we need to use the formula for the perimeter of a rectangle, which is given by the equation:
Perimeter = 2 * (Length + Width)
We are given that the perimeter is 294 cm and the width is 57 cm. So, we can substitute these values into the equation:
294 = 2 * (Length + 57)
Now, we need to solve this equation for the length. We can start by dividing both sides of the equation by 2:
294 / 2 = Length + 57
147 = Length + 57
Next, we can isolate the length by subtracting 57 from both sides of the equation:
147 - 57 = Length
90 = Length
Therefore, the length of the rectangle is 90 cm.
Is this really a college question?
Call the length L and the width W. You already now that W = 57.
2L + 2W = 294
2L + 114 = 294
2L = 180
L = ?