Three adjacent angles form a straight line

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

Problem

Three adjacent angles form a straight line. Their measures are in the ratio

1:2:5

. Identify the type of the largest angle. (a)

\text{Acute angle}

(b)

\text{Obtuse angle}

(c)

\text{Reflex angle}

(d)

\text{Right angle}