Question Number 186605 by HeferH last updated on 07/Feb/23
Commented by HeferH last updated on 07/Feb/23
$${question}\:{reposted}\:{to}\:{show}\:{another}\:{solution} \\ $$
Answered by HeferH last updated on 07/Feb/23
Commented by HeferH last updated on 07/Feb/23
$$\mathrm{2}\left(\mathrm{60}°\:+\:{x}\right)\:+\:\mathrm{40}°\:=\:\mathrm{180}° \\ $$$${x}\:=\:\mathrm{10}° \\ $$