tejeswar sivaji vechemgi discovered radius in circle
who discovrerd circle
Sircumference
Pi-thagoras
Archimedes
Archimedes discovered how to work out the area of the circle, and he also discovered pi.
Archimedes discovered how to work out the area of the circle, and he also discovered pi.
Johannes Kepler discovered that the Earth revolves/orbits the Sun in an ELLIPSE. He also discovered that the Sun is NOT at the centre of the ellipse, but at one of the foci ; (plural of focus). The other focal point being 'blind'. From this we have the definition, that as the Earth orbits the Sun , 'It sweeps equal arcs in equal times'. As the Earth orbits, it speeds up and slows down. It is moving at its fastest when passing the Sun at it nearest point ( perigee) and slowest when at its furthest point ( apogee). Have a look in Wikipedia under' Johannes Kepler.
No one really because a circle is a natural geometrical shape seen throughout nature.
makaland maina nai kiya tha]
Kepler
Pi is the relationship between the diameter and the circumference of a circle.