Each endpoint of a side of a polygon is called a ___.

a. diagonal.
b. vertex
c. corner

B. vertex

Step-by-step explanation:

Vertex, Vertices. each endpoint of a side of a polygon. Convex. a polygon such that no line containing a side of the polygon contains a point in the interior of the polygon.

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the answer is x equals 50, this is because the two angles are the same measurements because they are vertical angles. in corresponding angles, vertical angles are two angles with one diagonally above another. those two angles will be the same measurements.

110 - 10 = 100

100 / 2 = 50

x   = 50

110 = 2(50) + 10 = 110

110 = 110

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yep

step-by-step explanation: