Angles and are adjacent and form a straight angle

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

Problem

Angles

A

and

B

are adjacent and form a straight angle. Angle

A

30^{\circ}

more than twice angle

B

. Find the measure of angle

A

. (a)

120^{\circ}

(b)

50^{\circ}

(c)

130^{\circ}

(d)

140^{\circ}