Question Number 87088 by TawaTawa1 last updated on 02/Apr/20
Answered by mr W last updated on 02/Apr/20
Commented by mr W last updated on 02/Apr/20
$$\mathrm{2}\beta+\mathrm{40}°=\mathrm{180}° \\ $$$$\Rightarrow\beta=\mathrm{70}° \\ $$$$\mathrm{2}\alpha+\beta=\mathrm{180}° \\ $$$$\Rightarrow\alpha=\mathrm{55}° \\ $$$$\frac{{x}}{\mathrm{2}}+\alpha=\mathrm{90}° \\ $$$$\Rightarrow{x}=\mathrm{70}° \\ $$
Commented by TawaTawa1 last updated on 02/Apr/20
$$\mathrm{Ohh}.\:\mathrm{sweet}\:\mathrm{sir}.\:\:\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{sir} \\ $$