1. 2.19 Usecomputersimulationtofindtheprobabilitythatthetriangle OABhasanangle larger than 90◦ when A and B are randomly chosen points within the unit circle having the point O as center. What is this probability if the unit sphere is taken instead of the unit circle? Also, simulate the probabilities of getting a triangle with an obtuse angle from three random points in the unit circle and from three random points in the unit sphere.