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1. Dictionary

   semicircle

   /ˈsɛmɪˌsəːkl/

   noun

   • 1. a half of a circle or of its circumference.
   • ▪ a set of objects arranged in a semicircle: "chairs were in a semicircle round the hearth"

   Word Origin early 16th century: from Latin semicirculus(see semi-, circle).

   Scrabble Points: 16

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   • I

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   • R

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   • C

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   • L

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   More definitions, origin and scrabble points

2. www.merriam-webster.com › dictionary › semicircleSemicircle Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › semicircle

   • Cached

   A semicircle is a half of a circle or an object or arrangement of objects in the form of a half circle. Learn more about the word history, examples, synonyms and related entries of semicircle from Merriam-Webster dictionary.

3. Videos

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     2:32

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     Angle in a Semi Circle Proof

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     How To Calculate The Perimeter of a Semicircle

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     Area of a Semicircle from Diameter and Radius | Geometry

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4. mathmonks.com › circle › semicircleSemicircle – Definition, Meaning, Formulas, Solved Examples -...

   mathmonks.com › circle › semicircle

   • Cached

   Aug 3, 2023 · Definition. ‘Semi’ means half, thus semicircle is a half-circle. It is formed when a line passing through the center of the circle touches the two ends forming an intercepted arc. Thus a semicircle consists of the diameter of the circle and its connecting arc.

5. en.wikipedia.org › wiki › SemicircleSemicircle - Wikipedia

   en.wikipedia.org › wiki › Semicircle

   • Cached

   In mathematics (and more specifically geometry), a semicircle is a one-dimensional locus of points that forms half of a circle. It is a circular arc that measures 180° (equivalently, π radians, or a half-turn). It only has one line of symmetry (reflection symmetry).

6. www.dictionary.com › browse › semicircleSEMICIRCLE Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › semicircle

   • Cached

   A semicircle is half of a circle or the arc from one end of a diameter to the other. Learn more about the word history, derived forms, and usage examples of semicircle from Dictionary.com.

7. www.splashlearn.com › math-vocabulary › geometrySemicircle - Definition, Formulas, Area and Perimeter, Examples

   www.splashlearn.com › math-vocabulary › geometry

   • Cached

   A semicircle is a half circle formed by cutting the circle into two halves with a diameter. Learn how to calculate the area and perimeter of a semicircle using its radius or diameter with formulas and examples.

8. www.collinsdictionary.com › dictionary › englishSEMICIRCLE definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

   • Cached

   A semicircle is one half of a circle, or something having the shape of half a circle.