Question

Find the value of unknown angle in this figure​

Answer 1

${ \bold {\underline {\underline{ \star \: {solution}}}}}$

Sum of all angle is 360.

$x \degree+ 2x \degree + 138 \degree + 90 \degree = 360 \degree. \\ \\ \rightarrow 3x =360 - 228 . \\ \\ \rightarrow3x = 132. \\ \\ \rightarrow x = \frac{ \cancel1 \cancel3 \cancel2}{ \cancel3} . \\ \\ \rightarrow x = 44 \degree \\ \\ { \underline{ \underline{x = 44 {\degree}}}}$

So 2nd Ange be 2x.

$\rightarrow \: 2x \\ \\ \rightarrow 2 \times 44. \\ \\ \rightarrow \: 88 \degree$

${ \red { \underline{ \underline{\huge{\boxed {answer}}}}}}$