Question Number 207925 by lmcp1203 last updated on 30/May/24
Commented by lmcp1203 last updated on 31/May/24
$${proof}\:\alpha\:=\mathrm{20} \\ $$
Answered by Frix last updated on 31/May/24
$$\mathrm{It}'\mathrm{s}\:\mathrm{not}\:\mathrm{true}. \\ $$$$\alpha\approx\mathrm{20}.\mathrm{38}° \\ $$
Commented by lmcp1203 last updated on 31/May/24
$${thanks} \\ $$