Question

angle addition postulate
boom cards
find m∠bal

Explanation:

Step1: Apply angle - addition postulate

The angle - addition postulate states that if point $C$ lies in the interior of $\angle BAL$, then $m\angle BAL=m\angle BAC + m\angle CAL$.

Step2: Substitute given angle measures

We know that $m\angle BAC = 89^{\circ}$ and $m\angle CAL=32^{\circ}$. So, $m\angle BAL=89^{\circ}+ 32^{\circ}$.

Step3: Calculate the sum

$89 + 32=121$. So, $m\angle BAL = 121^{\circ}$.

Answer:

$121$