Answer: [tex]x=158\°[/tex]
Step-by-step explanation:
The picture given in the exercise shows a Quadilateral which has an angle whose measure is unknown.
By definition, the sum of the interior angles of a quadrilateral is 360 degrees.
Knowing this, you can write the following equation:
[tex]24\°+100\°+78\°+x=360\°[/tex]
Finally, you must solve for the angle "x" in order to calculate its measure.
This is:
[tex]24\°+100\°+78\°+x=360\°\\\\202\°+x=360\°\\\\x=360\°-202\°\\\\x=158\°[/tex]
