Question

Specify the following angles as acute, obtuse, right, straight or reflex .

(1) $\angle PQO$

(2) $\angle PMN$

(3) $\angle MNO$

(4)$\angle PQN,\angle PON$

Answer 1

Acute angles measure less than $90°$

Right angles measure $90°$

Obtuse angles measure more than $90°$

A straight angle is an angle equal to $180°$

A reflex angle is an angle that is more than $180°$ and less than $360°$

Hence,

(1) $\angle PQO$ is right angle

(2) $\angle PMN$ is obtuse angle

(3) $\angle MNO$ is an acute angle

(4) a. $\angle PQN$ is a straight angle

b.$\angle PON$ is obtuse angle