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Question Number 103393 by otchereabdullai@gmail.com last updated on 14/Jul/20

Answered by som(math1967) last updated on 14/Jul/20

$$\mathrm{x}+\mathrm{y}+\mathrm{r}=110°$$$$\mathrm{x}+2\mathrm{x}+2\mathrm{x}=110★$$$$5\mathrm{x}=110$$$$\mathrm{x}=22°\mathrm{ans}$$$$★\because 2\mathrm{x}=\mathrm{r}=\mathrm{y}$$

Commented by otchereabdullai@gmail.com last updated on 14/Jul/20

$$\mathrm{God}\mathrm{bless}\mathrm{you}\mathrm{sir}!$$

Answered by bramlex last updated on 15/Jul/20

Commented by bramlex last updated on 15/Jul/20

$$\iff \mathrm{x}+\mathrm{r}+\mathrm{y}+{70}^{\mathrm{o}}={180}^{\mathrm{o}}$$$$\iff \mathrm{x}+2\mathrm{x}+2\mathrm{x}={110}^{\mathrm{o}}$$$$\Rightarrow 5\mathrm{x}={110}^{\mathrm{o}}\Rightarrow \mathrm{x}=\frac{{110}^{\mathrm{o}}}{5}={22}^{\mathrm{o}}◼$$

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