This question introduces finding the perimeter of rectangles.
Add length and width, multiply by 2. Check units.
The perimeter of a rectangle is the total distance around it. Add length and width and multiply by 2: P = 2(L + W). For a rectangle with length 5 cm and width 3 cm, perimeter = 2(5+3) = 16 cm. Understanding perimeter helps with fencing, framing, or designing layouts. Practice with different rectangles and squares to gain speed. Compare units carefully to avoid errors.