What is the definition of perimeter? - The perimeter is the total distance around the edges of a two-dimensional shape., How do you calculate the perimeter of a rectangle? - Add the lengths of all sides, or use the formula: Perimeter = 2 × (length + width), What is the formula for the perimeter of a square? - Perimeter = 4 × side length, A garden is shaped like a rectangle with a length of 12 meters and a width of 8 meters. you need to put a fence around it. what is the total length of the fence needed? - Use the formula: Perimeter = 2 × (length + width) = 2 × (12 + 8) = 40 meters, Did you know the Great Wall of China has a perimeter of 21,196 km? If you walked 5 km every day, how many days would it take to walk the entire perimeter? - Divide the total length by 5 km/day: 21,196 ÷ 5 = 4,239.2 days (about 11.6 years!),

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