1 Answer

Nalu · Answer 1 · 2021-12-31T23:27:45+0000

Answer:

$m\angle 4 = 117\textdegree$

Explanation:

-Both
$\angle 1$ and
$\angle 4$ are supplementary, which they both equal to
$180\textdegree$ . So, to get the measurement of
$\angle 4$ , you need to subtract measure of
$\angle 1$ , from
$180\textdegree$ :

-Both
$\angle 1$ and
$\angle 4$ are supplementary:

$\angle 1 + \angle 4 = 180\textdegree$

-Find the
$m \angle 4$ by subtracting the
$m \angle 1$ from
180 :

$180\textdegree - 63\textdegree = 117\textdegree$

So, the
$m\angle 4$ is
$117\textdegree$ .

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