Maximum number of regions by joining points on a Circle | Surprising Regions Formula

In how many maximum numbers of regions can the interior of a circle be divided by straight lines joining n points on the circumference of a circle?
Surprising Regions Formula, points on a Circle
#mathematics #maths #math #recreationalmathematics #makingmathematicsmeaningful #non-RoutineMathematics #mathsiseverywhere #mathsisfun #reallifemathematics #ilovemaths
Non-Routine and Recreational Mathematics by Amit Bajaj