Question Number 194031 by Mingma last updated on 26/Jun/23
Commented by ellen12 last updated on 26/Jun/23
Impressive
Answered by mr W last updated on 27/Jun/23
$${R}={radius}\:{of}\:{circle} \\ $$$$\frac{\mathrm{2}{R}}{{a}}=\sqrt{\mathrm{2}} \\ $$$$\Rightarrow{R}=\frac{{a}}{\:\sqrt{\mathrm{2}}} \\ $$$${area}\:{of}\:{circle}\:=\pi{R}^{\mathrm{2}} =\frac{\pi{a}^{\mathrm{2}} }{\mathrm{2}} \\ $$
Commented by Mingma last updated on 26/Jun/23
Perfect
Commented by mr W last updated on 26/Jun/23
Commented by mr W last updated on 26/Jun/23
$${blue}\:{triangle}\:\sim\:{green}\:{triangle} \\ $$$${in}\:{ratio}\:\mathrm{1}\::\:\sqrt{\mathrm{2}} \\ $$
Commented by Mingma last updated on 26/Jun/23
Perfect