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Q.

A simple closed curve made up of only line segment is called :


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a

Curve

b

Polygon

c

Surface

d

Concave 

answer is B.

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Detailed Solution

Concept- Consider which closed figures are exclusively made up of line segments. Recall what a curve, polygon, surface, and concave figure are.
Any geometric object that begins as a line but gradually veers away from being straight is referred to be a curve in Euclidean geometry. Here is an illustration of a curve.
Question ImageA surface is a continuous barrier that divides a three-dimensional region into two halves. An illustration of a surface is the surface of a 3D spherical. A surface is an instance of an XY-plane in XYZ-space.
A figure is said to be concave closed if it has two points inside it, A and B, such that the line segment AB does not entirely lie inside the surface.
Question ImageBecause ABCDE has the points F and G that prevent FG from entirely fitting inside ABCDE, ABCDE is an example of a concave figure.
A closed shape formed only of line segments is referred to as a polygon. A polygon is a shape with three or more sides that may be concave or convex.
Hence, the correct option is 2) Polygon.
 
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