Multiple choice general knowledge math & puzzles

Perimeter of a Rectangle

  1. LxB

  2. 2x(L+B)

  3. 2x(LxB)

  4. (LxB)^2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The perimeter of a rectangle is the sum of all four sides, which equals 2 × (Length + Breadth). This is because opposite sides are equal, so you add Length + Breadth and multiply by 2. Option A (L × B) would give area, not perimeter.

AI explanation

To answer this question, you need to understand the concept of perimeter and how it is calculated for a rectangle.

The perimeter of a rectangle is the sum of all its side lengths. A rectangle has two pairs of equal sides, so we can represent its side lengths as L (length) and B (breadth).

Let's go through each option to understand why it is correct or incorrect:

Option A) LxB - This option is incorrect. It represents the area of the rectangle, not its perimeter.

Option B) 2x(L+B) - This option is correct. It represents the sum of the two lengths and two breadths, which gives us the total perimeter of the rectangle.

Option C) 2x(LxB) - This option is incorrect. It represents twice the area of the rectangle, not its perimeter.

Option D) (LxB)^2 - This option is incorrect. It represents the square of the area of the rectangle, not its perimeter.

The correct answer is Option B) 2x(L+B). This option is correct because it represents the sum of all the side lengths of a rectangle, which gives us its perimeter.

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