Lines a and b are cut by a transversal c

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

Problem

Lines a and b are cut by a transversal c. The measures of a pair of corresponding angles are

(3x + 15)^{\circ}

and

(5x - 9)^{\circ}

. For what value of

x

will lines a and b be parallel? (a)

24

(b)

3

(c)

12

(d)

21.75