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1. |
2. Find (a) the area (b) the perimeter of the square PQRS if(i) PQ = QR = 20 cm |
Answer» <p>area of a square = a²</p><p>= 20²</p><p>= 400 cm²</p><p>perimeter = 4a</p><p>= 4*20 </p><p>= 80 cm</p> | |