Parallelogram
Calculate the missing side of a parallelogram if you know the perimeter o and one side:
a) o = 7.2 cm; b = 1.8 cm
b) o = 5.4 cm; a = 1.9 cm
a) o = 7.2 cm; b = 1.8 cm
b) o = 5.4 cm; a = 1.9 cm
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