 Hi and welcome to the session. I am Priyanka and I will be helping you with the following question which says, recall pi is defined as the ratio of circumference say C of a circle to its diameter say D. That is pi is equal to C by D. This seems to contradict the fact that pi is irrational. How will you resolve this contradiction? So this is a question which needs a little bit of thinking from our side. Now let us start with our solution by writing that there is no contradiction. Remember that when you measure a length with a scale or any other device, we only get the approximate rational value, isn't it? You do not get any fixed value. So you may not realize that either C or D is irrational. So this is the only answer to the question which is given to us and let us write it. So the answer will be written that remember that when you measure a length with a scale or any other device, you only get an approximate rational value. So you may not realize that either C or D is irrational. So this is the answer of the question that was given to us. I hope you found it a little bit of thinking also. Right, bye for now.