Alert: You are not allowed to copy content or view source
IMO Result Declared Check here | IMO Level 2 Exam Timing & Guidelines Check here | Register for Maths, Science, English, GK Olympiad Exam Click here | Check Olympiad Exam Dates here | Buy Practice Papers for IMO, IOM, HEO, IOEL etc here | Login here to participate in all India free mock test on every Saturday


In geometry : An exact half of a sphere. It also refers to: Half of the Earth, such as the "Northern Hemisphere" (that part of the Earth north of the equator), or "Western Hemisphere" (the half of the Earth west of a line running from the North Pole thro