Question Number 92226 by jagoll last updated on 05/May/20
Commented by mr W last updated on 05/May/20
$$\mathrm{3}{x}=\mathrm{63} \\ $$$${x}=\mathrm{21}° \\ $$
Commented by jagoll last updated on 06/May/20
$$\mathrm{how}\:\mathrm{sir}? \\ $$
Commented by mr W last updated on 06/May/20
Commented by mr W last updated on 06/May/20
$$\alpha+\gamma+\mathrm{2}×\mathrm{90}°=\mathrm{2}×\mathrm{180}° \\ $$$$\Rightarrow\alpha+\gamma=\mathrm{180}° \\ $$$$\beta+\gamma=\mathrm{180}° \\ $$$$\Rightarrow\alpha=\beta \\ $$$$\Rightarrow\mathrm{3}{x}=\mathrm{63}° \\ $$$$\Rightarrow{x}=\mathrm{21}° \\ $$
Commented by jagoll last updated on 06/May/20
$$\mathrm{waw}..=====\mathrm{great}\:\mathrm{sir}\: \\ $$$$\mathrm{thank}\:\mathrm{you} \\ $$
Commented by Prithwish Sen 1 last updated on 06/May/20
$$\alpha+\gamma=\mathrm{180}\:\:\mathrm{and}\:\beta+\gamma\:=\:\mathrm{180} \\ $$$$\mathrm{then}\:\alpha\:=\:\beta\:=\:\mathrm{63} \\ $$