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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