Area, the amount of space inside a flat shape., Perimeter, the total distance all the way around a shape., square centimeter, a tiny square that is 1 centimeter long and 1 centimeter wide., square meter, a big square that is 1 meter long and 1 meter wide., Regular shapes, shapes where all the sides are the same length and all the angles are the same size., Irregular shapes, shapes where the sides and angles are not all the same., Length, how long something is from one end to the other., Width, how wide something is from side to side..

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