Respuesta :
Formula
2*(L + W) = L * W
Given
W = 3
Solution
2*(L + 3) = 3*L
2L+ 6 = 3L Subtract 2L from both sides
2L - 2L + 6 = 3L - 2L combine
6 = L
Answer: The length is 6 units long.
We are being informed that the perimeter of a rectangle and its area have the same numerical value.
Thus,
- since the width of the rectangle is 3 units,
- the length of the rectangle is also = 6 units
We knew that the perimeter of a rectangle = 2 (L + B), and;
The Area of a rectangle = (L × B)
If the width of the rectangle = 3 units
If we equate the perimeter of the rectangle and the area of the rectangle to we can determine the length of the rectangle.
So;
2 (L + W) = ( L × W)
2 ( L + 3) = ( L × 3)
6 + 2L = 3L
6 = 3L - 2L
L = 6
In conclusion, the length of the rectangle = 6 units
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