Question

X= a) 115.5 b) 137 c) 180

Answer 1

$137 = \frac{1}{2} (\angle x + 94)$

$137 = \frac{1}{2} \angle x + 47$

$\frac{1}{2} \angle x = 137 - 47$

$\frac{1}{2} \angle x = 90$

$\angle x = 90 \times 2$

$\angle x = 180 \textdegree$