what is( pi squared divided by 21) x 69.2 and then take away 4.564.

$$\left(\left({\frac{{{\mathtt{\pi}}}^{{\mathtt{2}}}}{{\mathtt{21}}}}\right){\mathtt{\,\times\,}}{\mathtt{69.2}}\right){\mathtt{\,-\,}}{\mathtt{4.564}} = {\mathtt{27.958\: \!696\: \!407\: \!399\: \!219\: \!8}}$$

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