Question

find x, if l || m.
find the answer​

Answer 1

$\tt \huge \: Solution :$

$\rightarrow\tt \bold{ here \: , line \: \: l \: \parallel \: line \: \: m \: .}$

$\rightarrow\tt \bold{\angle \: ABC \: = 105 \degree}$

$\rightarrow\tt \bold {\angle \: ABC≅\angle \: FBD \: }$

....( BY VERTICAL OPPOSITE ANGLE )

$\tt \bold{\therefore \angle \: FBC \: = 105 \degree}$

.... ( BY INTERIOR ALTERNATE ANGLE )

$\rightarrow \tt \bold{ \angle \: FBD \: ≅ \angle BDE}$

$\rightarrow\tt \bold \red{x \: = \: 105 \degree}$

$\bf \underline { \: NOTE \: }$

Refer attachment for better understanding.