Answer:
To find the unknown angle \( x \) in the polygon with angles 105, 60, 100, and \( x \), you can use the fact that the sum of interior angles in any polygon is given by \((n-2) \times 180^\circ\), where \( n \) is the number of sides.
For this polygon, with 4 sides, the sum is \( (4-2) \times 180^\circ = 360^\circ \).
Now, subtract the given angles from the total sum:
\[ 360^\circ - (105^\circ + 60^\circ + 100^\circ) = x \]
Calculate \( x \) to find the unknown angle.
