Rectangle Area - A = base X height , Rectangle Perimeter - P = base + height + base + height, Triangle Area - A = 0.5 X base X height , Circle Area - A = 3.14 X radius X radius, Circle Circumference - C = 3.14 X (radius + radius) , Parallelogram Area - A= base X height , Trapezium Area - A= (side + side) ÷2 X height ,

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