Answer:
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Explanation:
Given,
Circumference ( C ) = 198 cm
Diameter ( d ) = ?
Now, let's find the diameter of the circle :
We have,

plug the values
⇒

Swap the sides of the equation
⇒

Divide both sides of the equation by 3.14
⇒

Calculate
⇒
cm
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
⇒The perimeter of a circle is called it's circumference. It is the total length of the curved line of the circle.
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
⇒It is the line segment that joins the center of a circle and any point on its circumference.
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
⇒A line segment that passes through the centre of a circle and joins ant two points on its circumference is called the diameter of the circle. The length of a diameter is two times radius.
Hope I helped!
Best regards!!