Lines and are parallel and are intersected by a transversal

MATHEMATICS · Single correct · CBSE · Mathematics · Lines and Angles · Lines and Angles

Problem

Lines

AB

and

CD

are parallel and are intersected by a transversal

EF

. One interior angle on the same side of

EF

measures

(6x + 15)^\circ

and the other measures

(4x + 25)^\circ

. Find the value of

x

. (a) 12 (b) 14 (c) 15 (d) 5