Find the length of the circle if its diameter is 45cm.

A circle is a series of equally distant points from the point that is the center of the circle.

In any circles, the ratio of the circumference of a circle to its diameter is always the same and is characterized by the number Π.

Formula for determining the circumference:

L = Π * D = 2Πr;

L is the circumference;

D is the diameter of the circle;

r is the radius of the circle;

Π = 3.14 …

Find the circumference:

L = 3.14 * 45 cm = 141.3 centimeters.

Answer: With a diameter of 45 cm, the circumference is approximately 141.3 centimeters.



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