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  1. Hemisphere | Description, Types, & Facts | Britannica

    In geometry, a sphere is the set of all points in three-dimensional space lying the same distance (the radius) from a given point (the center); a hemisphere is half of a sphere, cut along the …

  2. Hemispheres of Earth - Wikipedia

    In geography and cartography, hemispheres of Earth are any division of the globe into two equal halves (hemispheres), typically divided into northern and southern halves by the Equator and …

  3. Hemisphere - National Geographic Society

    Mar 6, 2024 · The word "hemisphere" is usually used to refer to halves of Earth, but it is also used to identify the halves of the brain. The brain is divided down the middle into the right and left …

  4. The 4 Hemispheres Of The World - WorldAtlas

    Feb 14, 2023 · A hemisphere can be defined as any circle that has been drawn around the Earth and divides the Earth into two similar halves. Four different hemispheres are generally …

  5. HEMISPHERE Definition & Meaning - Merriam-Webster

    Hemisphere includes the prefix hemi-, meaning "half". The northern and southern hemispheres are divided by the equator, the circle halfway between Earth's two poles.

  6. Hemisphere - Formula, Properties, Definition | Hemisphere

    A hemisphere, in general, refers to half of the earth such as the northern hemisphere or the southern hemisphere. But in geometry, a hemisphere is referred to as a 3D figure made from …

  7. Hemisphere - Math.net

    A hemisphere is a 3D geometric figure that is half of a sphere (hemi- means half). Earth can be divided into the Northern Hemisphere and the Southern Hemisphere.

  8. What Are the Four Hemispheres of the Earth? - The Institute for ...

    Jun 15, 2025 · The Northern Hemisphere encompasses the portion of the Earth north of the Equator, while the Southern Hemisphere lies south of it. This is arguably the most common …

  9. Hemisphere Meaning & Earth's Four Hemispheres Explained

    Hemisphere refers to a half of a spherical object, such as a globe or planet. On Earth, a hemisphere is one of the two equal parts formed by dividing the planet with an imaginary line …

  10. WHAT IS A HEMISPHERE? - The Knowledge Library

    A hemisphere is a half of a sphere, typically divided by an imaginary line called the equator or a similar reference line. The term “hemisphere” is commonly used in geography and astronomy …