Geogebra tutorial circumcircle of a Triangle

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Geogebra tutorial circumcircle of a Triangle

  1. 1. Construction of Circum circle of a Triangle Using software GeoGebra Pratima Nayak,KV,Fort William
  2. 2. Open GeoGebra .
  3. 3. Select Insert Text tool and type in the box.
  4. 4. Select new point tool and mark point A.
  5. 5. Select new point tool and mark point B.
  6. 6. Select new point tool and mark point B.
  7. 7. Join A and C by selecting segment between Two points tool.
  8. 8. Join B and C by selecting segment between Two points tool.
  9. 9. Join B and A by selecting segment between Two points tool. Hence, ABC is the Triangle.
  10. 10. Draw perpendicular bisector of side AB with help of Perpendicular bisector tool.
  11. 11. Similarly draw perpendicular bisector of side BC.
  12. 12. Find intersection point of two perpendicular bisectors With Intersect Two Objects tool.
  13. 13. Join AO, BO and CO with selecting segment between Two points tool. Find the length and observe that the lengths are same.
  14. 14. Draw the circle with centre O through A,B or C.
  15. 15. The circle will pass through the vertices A,B and C. So, Circle O’ is the Circum circle of Triangle ABC.
  16. 16. http://www.geogebratube.org/student/b89331#material/96836 http://pnayakmaths.blogspot.in/2014/03/construction-of- circumcircle-of.html You also can visit following links for GeoGebra file of same procedure. Write your feedback to pnpratima@gmail.com

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