+1904 $${\mathtt{A}} = {\mathtt{\pi}}{\mathtt{\,\times\,}}{{\mathtt{r}}}^{{\mathtt{2}}}$$, $${\mathtt{d}} = {\mathtt{35}}$$
$${\mathtt{A}} = {\mathtt{Area}}$$, $${\mathtt{\pi}} = {\mathtt{3.141\: \!592\: \!653\: \!589\: \!793\: \!2}}$$..., r=1/2 the diameter
$${\mathtt{A}} = {\mathtt{\pi}}{\mathtt{\,\times\,}}{\left({\mathtt{35}}{\mathtt{\,\times\,}}\left({\frac{{\mathtt{1}}}{{\mathtt{2}}}}\right)\right)}^{{\mathtt{2}}}$$
$${\mathtt{A}} = {\mathtt{\pi}}{\mathtt{\,\times\,}}{\left({\frac{{\mathtt{35}}}{{\mathtt{2}}}}\right)}^{{\mathtt{2}}}$$
$${\mathtt{A}} = {\mathtt{\pi}}{\mathtt{\,\times\,}}\left({\frac{{\mathtt{35}}}{{\mathtt{2}}}}\right){\mathtt{\,\times\,}}\left({\frac{{\mathtt{35}}}{{\mathtt{2}}}}\right)$$
$${\mathtt{A}} = {\mathtt{\pi}}{\mathtt{\,\times\,}}\left({\frac{{\mathtt{1\,225}}}{{\mathtt{4}}}}\right)$$
$${\mathtt{A}} = {\frac{{\mathtt{1\,225}}{\mathtt{\,\times\,}}{\mathtt{\pi}}}{{\mathtt{4}}}}$$ or $${\mathtt{A}} = {\mathtt{962.112\: \!750\: \!161\: \!874\: \!179\: \!3}}$$...
.+1904 $${\mathtt{A}} = {\mathtt{\pi}}{\mathtt{\,\times\,}}{{\mathtt{r}}}^{{\mathtt{2}}}$$, $${\mathtt{d}} = {\mathtt{35}}$$
$${\mathtt{A}} = {\mathtt{Area}}$$, $${\mathtt{\pi}} = {\mathtt{3.141\: \!592\: \!653\: \!589\: \!793\: \!2}}$$..., r=1/2 the diameter
$${\mathtt{A}} = {\mathtt{\pi}}{\mathtt{\,\times\,}}{\left({\mathtt{35}}{\mathtt{\,\times\,}}\left({\frac{{\mathtt{1}}}{{\mathtt{2}}}}\right)\right)}^{{\mathtt{2}}}$$
$${\mathtt{A}} = {\mathtt{\pi}}{\mathtt{\,\times\,}}{\left({\frac{{\mathtt{35}}}{{\mathtt{2}}}}\right)}^{{\mathtt{2}}}$$
$${\mathtt{A}} = {\mathtt{\pi}}{\mathtt{\,\times\,}}\left({\frac{{\mathtt{35}}}{{\mathtt{2}}}}\right){\mathtt{\,\times\,}}\left({\frac{{\mathtt{35}}}{{\mathtt{2}}}}\right)$$
$${\mathtt{A}} = {\mathtt{\pi}}{\mathtt{\,\times\,}}\left({\frac{{\mathtt{1\,225}}}{{\mathtt{4}}}}\right)$$
$${\mathtt{A}} = {\frac{{\mathtt{1\,225}}{\mathtt{\,\times\,}}{\mathtt{\pi}}}{{\mathtt{4}}}}$$ or $${\mathtt{A}} = {\mathtt{962.112\: \!750\: \!161\: \!874\: \!179\: \!3}}$$...
