Technically, angles are made of rays that are 2-D, not 3-D. Only 3-D figures have sides. So, no.
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They are co-terminal angles.
Adjacent angles have a shared vertex.
An isosceles triangle is a triangle with two equal sides and two equal angles. The two equal sides are called the legs, and the angle between them is called the vertex angle. The two other angles in an isosceles triangle are equal and are called the base angles.
The vertex is just the corner or angle so the polygon.
A shape with ten sides and seven vertex is impossible. There must always be the same amount of sides as vertex in a shape.