Answer:
Step-by-step explanation:
The permiter of a rectangle got be determined by the following equation:
P = 2L + 2W
where P is the perimeter, L is the length of the rectangle, and W is the width of the rectangle.
From the problem statement, we know that P = 60, and that the length is twice the width, so we have the following two equations:
60 = 2L + 2W
L = 2W
If we substitute the second equation into the first, we have the following:
60 = 2(2W) + 2W
60 = 4W + 2W
60 = 6W
10 = W
Plugging this value back into the second equation, we have the following:
L = 2W
L = 2(10)
L = 20
The area of a rectangle is determined by the following:
A = LW
where A is the area.
Plugging in the values that we determined previously we give you the answer.
