Shrimad Rajchandra, born Raichandbhai Ravajibhai Mehta, was a prominent Jain poet, philosopher, and scholar. He is best known for his teachings on Jainism and as a spiritual guide of Mahatma Gandhi.
In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle. Both definitions are also valid for the diameter of a sphere. The word "diameter" is derived from Greek language διάμετρος ( diametros), "diameter of a circle", from δια- ( dia-), "across, through" μέτρον ( metron), "measure". Online Etymology Dictionary It is often abbreviated ..