Question Number 89755 by naka3546 last updated on 19/Apr/20
Commented by john santu last updated on 19/Apr/20
$$\mathrm{576}\:{cm}^{\mathrm{2}} \\ $$
Answered by $@ty@m123 last updated on 19/Apr/20
$${A}=\mathrm{24}^{\mathrm{2}} −\pi×\mathrm{12}^{\mathrm{2}} \\ $$$$=\mathrm{576}−\mathrm{144}\pi \\ $$$$=\mathrm{123}\frac{\mathrm{3}}{\mathrm{7}}\:{cm}^{\mathrm{2}} \\ $$
Commented by $@ty@m123 last updated on 19/Apr/20
Commented by john santu last updated on 19/Apr/20
Commented by john santu last updated on 19/Apr/20
$${I}\:=\:\mathrm{24}^{\mathrm{2}} −\mathrm{144}\pi \\ $$$${II}\:=\:\mathrm{144}\pi \\ $$$${shaded}\:{area}\:=\:{I}+{II}\:=\:\mathrm{576} \\ $$
Commented by $@ty@m123 last updated on 19/Apr/20
$${Oh}...{Yes}. \\ $$$${Thanks}\:{for}\:{correction}. \\ $$