Question Number 181051 by mr W last updated on 20/Nov/22
Answered by a.lgnaoui last updated on 21/Nov/22
$${cote}\:{du}\:{carre}\:{bleu}\:\left[{CD}\right]={b}\:{comme}\:{il} \\ $$$${apparait}\:{dans}\:\left({image}\right){est} \\ $$$${CD}:{prolongement}\:{de}\left[\:{AC}\right]\left({AC}\right) \\ $$$$\left[{CD}\right]=\mathrm{2}×{AC} \\ $$$${AC}=\sqrt{\mathrm{2}{a}^{\mathrm{2}} }\:={a}\sqrt{\mathrm{2}}\:\:\:\: \\ $$$${Aire}\:{du}\:{csrre}\:{bleu}\:: \\ $$$$\:{A}=\left(\mathrm{2}×{a}\sqrt{\mathrm{2}}\:\right)^{\mathrm{2}} =\mathrm{8}{a}^{\mathrm{2}} \\ $$$$\:\:{Aire}\:\:{A}=\mathrm{8}×{A} \\ $$$$ \\ $$
Commented by a.lgnaoui last updated on 21/Nov/22