Question Number 191324 by Mingma last updated on 23/Apr/23 | ||
Answered by HeferH last updated on 23/Apr/23 | ||
$$\mathrm{r}\:=\:\mathrm{20} \\ $$$$\mathrm{S}\:=\:\frac{\mathrm{15}×\mathrm{20}}{\mathrm{2}}\:+\:\frac{\mathrm{7}×\mathrm{24}}{\mathrm{2}}\:=\:\mathrm{150}+\mathrm{84}\:=\:\mathrm{234}\:\mathrm{u}^{\mathrm{2}} \: \\ $$ | ||
Commented by Mingma last updated on 23/Apr/23 | ||
Excellent! | ||