The rectangular schoolyard is 300m long and 200m wide. Find the perimeter of the schoolyard.

The condition says that the schoolyard is rectangular. The rectangle has 4 sides. Every 2 opposite sides are equal. Therefore, the perimeter, which is made up of the lengths of all sides, is 2 * 300 + 2 * 200 = 600 + 400 = 1000 m2.



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