Question Number 186788 by Mingma last updated on 10/Feb/23
Answered by HeferH last updated on 10/Feb/23
Commented by HeferH last updated on 10/Feb/23
$${Special}\:{quadrilateral}: \\ $$$$\:{x}\:=\:\mathrm{10}°\: \\ $$
Commented by HeferH last updated on 10/Feb/23
