Lines and are parallel and are intersected by a transversal

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

Problem

Lines

a

and

b

are parallel and are intersected by a transversal

t

. At the intersection with

a

, the obtuse angle on the left of

t

measures

(8x-40)^{\circ}

. At the intersection with

b

, the acute angle on the right of

t

measures

(2x-20)^{\circ}

. Calculate

x

. (a)

22

(b)

24

(c)

26

(d)

15