Question Number 97858 by bemath last updated on 10/Jun/20
Commented by bemath last updated on 10/Jun/20
$$\mathrm{find}\:\mathrm{shaded}\:\mathrm{area}\:\mathrm{region} \\ $$
Answered by bobhans last updated on 10/Jun/20
$$\mathrm{shaded}\:\mathrm{Area}\:\mathrm{region}\:=\:\frac{\mathrm{1}}{\mathrm{2}}\pi\:\left(\mathrm{3}\sqrt{\mathrm{2}}\right)^{\mathrm{2}} −\left(\frac{\mathrm{1}}{\mathrm{4}}\pi\left(\mathrm{36}\right)−\mathrm{18}\right) \\ $$$$=\:\frac{\mathrm{18}\pi}{\mathrm{2}}\:−\:\frac{\mathrm{18}\pi}{\mathrm{2}}\:+\:\mathrm{18}\:=\:\mathrm{18}. \\ $$
Commented by bemath last updated on 10/Jun/20
good