Question Number 158586 by ajfour last updated on 06/Nov/21
Commented by mr W last updated on 06/Nov/21
Commented by mr W last updated on 06/Nov/21
$${it}'{s}\:{clear}\:{that}\:{r}=\mathrm{1}. \\ $$
Commented by ajfour last updated on 06/Nov/21
$${yes}\:{sir},\:{thanks},\:{u}\:{saved}\:{time}. \\ $$
Commented by Ari last updated on 06/Nov/21
$${why}\:{gren}\:{triangle}\:{is}\:{the}\:{same}\:{with}\:{black}\:{triangle}\:{sir}?! \\ $$
Commented by mr W last updated on 07/Nov/21
$${the}\:{small}\:{equilateral}\:{triangle}\:{can}\:{only} \\ $$$${be}\:{at}\:{the}\:{position}\:{as}\:{the}\:{green}\:{triangle}, \\ $$$${not}\:{as}\:{indicated}\:{by}\:{the}\:{black}\:{one}. \\ $$