Question

what is the centroid of a circle of diameter 100mm

Answer 1

here it is have a glance dude

Answer 2

Centroid of the circle is its center.

Explanation:

1. for a given circle of a diameter 'D' the centroid can be identified as the middle of the circle.

2. the middle of the circle is also the center of gravity of the circle or simply the center of the circle.

3. center of the circle is the point that divided the diameter in two equal parts called radii ( plural for radius).

4. here , for a circle of diameter $100mm$ the centroid will be the mid point of the diameter dividing it into two radii of $50mm$ each also being the center of the circle