Circle and terms related to Circle Ralph P. Ragunton Grade 10 Mathematics Teacher CIRCLE is set of all points in a plane that are equidistant from a given point called the center of the circle. R โR or Circle R RADIUS a line segment that joins the center of a circle to a point on the circle. Example of Radius/Radii: ๐ฉ๐จ, ๐จ๐ซ, ๐๐๐ ๐ช๐จ โA or Circle A CHORD a line segment whose endpoints lies on a circle. Example of Chord: ๐ช๐ซ, ๐๐๐ ๐ช๐ฌ โA or Circle A DIAMETER is a chord that passes through the center of the circle. Its length is twice as long as the radius. Example of Diameter: ๐ช๐ซ โA or Circle A ARC is any portion of the circumference of a circle. Circumference of a Circle Is the perimeter or distance around a circle. Examples of Arc: เทข or Arc CE ๐ช๐ฌ โA or Circle A ARC is any portion of the circumference of a circle. Additional Information about Arcs: โ You can measure arc in terms of length or opening(degrees). โ Circle itself is an arc measuring 360° โA or Circle A SEMICIRCLE 180° is an arc whose measure is exactly 180° and its endpoints are endpoints of a diameter. Example of Semicircle: เทฃ ๐๐๐ ๐ช๐ฌ๐ซ เทฃ ๐ซ๐ฉ๐ช, โA or Circle A 180° MINOR ARC 110° is an arc whose measure is between 0° and 180°. Example of Minor Arc: เทข ๐ฉ๐ซ, เทข ๐๐๐ ๐ซ๐ฌ เทข ๐ฉ๐ช, 70° 60° โA or Circle A MAJOR ARC is an arc whose measure is between 180° and 360°. 230° Example of Major Arc: เทฃ ๐๐๐ ๐ฉ เทฃ ๐ฉ๐ช๐ฌ, ๐ฌ๐ช 250° โA or Circle A CENTRAL ANGLE an angle whose vertex is the center of the circle and sides are the radii of the circle. Example of Central Angle: ∠๐ฉ๐จ๐ช ๐๐๐ ∠๐ฉ๐จ๐ซ โA or Circle A INTERCEPTED ARC is an arc by which it is encased on either side by a central angle or an inscribed angle. Examples of Intercepted Arc: เทข ๐ฉ๐ซ, เทข ๐๐๐ ๐ซ๐ฌ เทข ๐ฉ๐ช, โA or Circle A Circle-xamples 13 Circle-xamples Center Answer/s: โ๐ฌ โE or Circle E Circle-xamples Radius/Radii Answer/s: ๐จ๐ฌ ๐๐ ๐ฌ๐จ ๐ญ๐ฌ ๐๐ ๐ฌ๐ญ ๐ฌ๐ช ๐๐ ๐ช๐ฌ โE or Circle E Circle-xamples Diameter Answer/s: ๐จ๐ช ๐๐ ๐ช๐จ โE or Circle E Circle-xamples Chord Answer/s: ๐จ๐ช ๐๐ ๐ช๐จ ๐ฉ๐ช ๐๐ ๐ช๐ฉ ๐ซ๐ช ๐๐ ๐ช๐ซ โE or Circle E Circle-xamples Chord Answer/s: ๐จ๐ช ๐๐ ๐ช๐จ ๐ฉ๐ช ๐๐ ๐ช๐ฉ ๐ซ๐ช ๐๐ ๐ช๐ซ โE or Circle E Circle-xamples Semi-Circle Answer/s: เทฃ ๐๐ ๐ช๐ซ๐จ เทฃ ๐จ๐ซ๐ช เทฃ ๐๐ ๐จ๐ฉ๐ช เทฃ ๐จ๐ญ๐ช เทฃ ๐๐ ๐ช เทฃ ๐๐ ๐ช๐ฉ๐จ ๐ญ๐จ โE or Circle E Circle-xamples โE or Circle E Minor Arc Answer/s: เทข ๐๐ ๐ญ๐จ เทข ๐จ๐ญ เทข ๐๐ ๐ฉ๐ญ เทข ๐ญ๐ฉ เทข ๐๐ ๐ช๐ฉ เทข ๐ฉ๐ช เทข ๐๐ ๐ซ๐จ เทข ๐จ๐ซ เทข ๐๐ ๐ช๐ซ เทข ๐ซ๐ช Circle-xamples โE or Circle E Major Arc Answer/s: เทฃ ๐๐ ๐ซ๐ช๐จ เทฃ ๐จ๐ช๐ซ เทฃ ๐๐ ๐ซ๐จ๐ช เทฃ ๐ช๐จ๐ซ เทฃ เทฃ ๐ช ๐จ๐ญ ๐๐ ๐ญ ๐จ๐ช เทฃ ๐๐ ๐ฉ๐จ๐ช เทฃ ๐ช๐จ๐ฉ
