Question

find the angle measure. then classify the angle. (see example 2.) 10) $m\angle bod$ 11) $m\angle cod$

Explanation:

Step1: Read $m\angle BOD$ measure

Ray $OB$ aligns with $0^\circ$, ray $OD$ aligns with $70^\circ$.
$m\angle BOD = 70^\circ$

Step2: Classify $\angle BOD$

Angles between $0^\circ$ and $90^\circ$ are acute.
$0^\circ < 70^\circ < 90^\circ$

Step3: Read $m\angle COD$ measure

Ray $OC$ aligns with $140^\circ$, ray $OD$ aligns with $70^\circ$.
$m\angle COD = |140^\circ - 70^\circ| = 70^\circ$

Step4: Classify $\angle COD$

Angles between $0^\circ$ and $90^\circ$ are acute.
$0^\circ < 70^\circ < 90^\circ$

Answer:

1. $m\angle BOD = 70^\circ$, acute angle
2. $m\angle COD = 70^\circ$, acute angle