Question

9/25 angles are awesome circuit
if m<dbc = 51°, find m<abd=
math input error

Explanation:

Step1: Identify angle - relationship

$\angle ABC$ is a right - angle, so $m\angle ABC = 90^{\circ}$. Also, $\angle ABC=\angle ABD+\angle DBC$.

Step2: Solve for $\angle ABD$

We know that $\angle ABD=m\angle ABC - m\angle DBC$. Substituting $m\angle ABC = 90^{\circ}$ and $m\angle DBC = 51^{\circ}$, we get $m\angle ABD=90 - 51$.
$m\angle ABD = 39^{\circ}$

Answer:

$39$