Question

Find angle x if line l is parallel to line m and line n is a transversal.

• A. ${130}^{\circ }$
• B. ${120}^{\circ }$
• C. ${110}^{\circ }$
• D. ${150}^{\circ }$

Answer 1

The correct option is A

${130}^{\circ }$

Interior angles on the same side of transversal are supplementary.
x+ 50${}^{\circ }$ = 180${}^{\circ }$
x = 180${}^{\circ }$ - 50${}^{\circ }$
x = 130${}^{\circ }$