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The difference between the circumference of circle X and circumference of circle Y is 5π cm.
<h3>What is circumference of a circle?</h3>
This is the distance round a circle.
The circumference of circle X is calculated as follows;

The circumference of circle Y is calculated as follows;

The difference between the circumference of circle X and circumference of circle Y is calculated as follows;

Thus, the difference between the circumference of circle X and circumference of circle Y is 5π cm.
Learn more about circumference of a circle here: brainly.com/question/9782777
Answer: A plane has two dimensions because it is a flat surface that has length and width but no depth.
It’s a circular pyramid! Hopes this helps