Question Number 178645 by a.lgnaoui last updated on 19/Oct/22
$${determiner}\:{la}\:{surface}\:{exterieure}\:{au}\:{carre}\:{bleu}\:{dans}\:{laquelle} \\ $$$$\:{la}\:{chevre}\:{pourra}\:{circuler} \\ $$
Commented by a.lgnaoui last updated on 19/Oct/22
Commented by Frix last updated on 19/Oct/22
$$\mathrm{3}\:\mathrm{quarters}\:\mathrm{of}\:\mathrm{a}\:\mathrm{circle}\:\mathrm{if}\:{r}=\mathrm{6}{m}\:\mathrm{plus}\:\mathrm{2}\:\mathrm{quarter} \\ $$$$\mathrm{circles}\:\mathrm{of}\:{r}=\mathrm{2}{m} \\ $$$$\frac{\mathrm{3}}{\mathrm{4}}×\mathrm{6}^{\mathrm{2}} \pi+\mathrm{2}×\frac{\mathrm{1}}{\mathrm{4}}×\mathrm{2}^{\mathrm{2}} \pi=\mathrm{29}\pi{m}^{\mathrm{2}} \\ $$
Commented by a.lgnaoui last updated on 20/Oct/22
$${exactly}\:{thank}\:{you}. \\ $$
Commented by a.lgnaoui last updated on 20/Oct/22
