Which out of the following are examples of simple closed curves from the below options.

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Circle

Rectangle

Square

All of the above

answer is D.

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Detailed Solution

Concept-
Determine whether the options we are provided are a simple closed curve. To find this, we must first comprehend a few words. Closed figures include circles and the pentagon. Closed figures are those in which the start and end points are identical. Open figures are diagrams with various starting and stopping places.
Now that we have looked at each curve, we will determine whether or not it is a simple closed curve. Polygons are a type of straightforward, closed curve constructed simply with line segments. Polygons include triangles and quadrilateral Pentagons. So, in this case, the square and triangle are both Now that we have that in mind, let's look at some straightforward closed curves that can be created using only lines. One instance is a circle. straightforward closed curves built exclusively of line segments and do not cut themselves. Hence, the correct answer is option 4) all of the above

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