100 circles are drawn on a plane what is the maximum number of regions made by this system of `100` circles

The maximum number of regions in which 10 circle can divide a plane is

The maximum number of regions in which 10 circle can divide a plane is:

What is the maximum number of parallel tangents a circle can have on a diameter?

Maximum number of tangents drawn from a point on the circle is :

What is the maximum number of circum-circles that a triangle can have?

A circle and a parabola are drawn on a piece of paper.The number of regions they divide the paper into is at most

Maximum number of point of intersection made by 5 circles and 3 triangles