0.6 Construct a parallelogram ABCD such that I(BC)=6.5cm, 1(AB)=4.5cm,MLABC = 55°.
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A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus and minus signs.
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