The answers are:
(a) The geometric figures modeled by the stars are the "points".
(b) The stars 1, 2, and 3 are non-collinear points since they do not lie on the same line.
(c) The Polaris, star 2, and star 6 are in the same plane, they are coplanar.
What is meant by non-collinear and coplanar?
The term non-collinear represents the points that do not lie on the same line.
The term coplanar represents the points that lie in the same plane(coordinate plane).
Calculation:
(a) geometrical figures by the stars:
The stars in the given image are representing the coordinate locations. Thus, they are model points with no shape and size.
(b) Star 1, 2, and 3 are collinear points:
Since the stars 1, 2, and 3 are not on the same line they are non-collinear points.
(c) Star 2 and Star 6 are coplanar:
Yes, they are coplanar points. Since stars 2 and 6 lie on the same plane, they are coplanar points.
Learn more about collinear and coplanar here:
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