Researchers from Columbia University Medical Centre in United States of America have converted which of the following into the world’s smallest data recorder?
In a triangle ABC, the length of in-radius and circum-radius is 2 units and 6 units respectively. Find the distance (in units) between the in-centre and circum-centre.
Rahul travels 8km towards east, turns right and travels another 6km, and then takes two successive left turns covering 21km and 6km in each turn respectively. Finally, he takes a right turn and travels 8km further. How far is he now from his original position?