The perimeter of a rectangle is represented by which expression?

• A. L*W
• B. L+W
• C. 2(L+W)
• D. 2L+2W

Answer: (C)

Perimeter is the total distance around the rectangle, which comes from adding all four sides: two lengths and two widths. That gives P = L + W + L + W = 2L + 2W. Writing it as 2(L+W) shows you’re doubling the sum of the length and width, which is exactly what the perimeter does when you go around the shape. This is the standard compact form for the perimeter.

The expanded form 2L + 2W expresses the same idea without factoring, so it’s also correct but less concise. The other expressions don’t represent the perimeter: L times W is area, and L plus W accounts for only two sides, not the full loop.