Bisectors Loci Demonstration This resource provides animated demonstrations

Bisectors & Loci – Demonstration This resource provides animated demonstrations of the mathematical method. Check animations and delete slides not needed for your class.

Perpendicular Bisector 90° Cut in half.

Perpendicular from a Point

Perpendicular from a Point to a Line

Angle Bisector

60° Angle

What is the locus of a point that is always 4 cm away from B? 4 cm B

What is the locus of a point that is always the same distance from A & B? A B This line is a perpendicular bisector of the line AB.

What is the locus of a point that is always 3 cm from line AB? What about here? A × B

1) Construct the locus of a point that is equidistant between A and B. A 2) Construct a perpendicular line from the point C. B C 3) Mark the point X that lies within the triangle, is equidistant from the lines DE and DF, and is 5 cm from F. E 4) Construct a right-angled triangle using GH. Construct a 60° angle at H. Find the ‘triangle centre’: the point equidistant from all sides. H G D F Answers

1) Construct the locus of a point that is equidistant between A and B. 2) Construct a perpendicular line from the point C. B A C 3) Mark the point X that lies within the triangle, is equidistant from the lines DE and DF, and is 5 cm from F. E 4) Construct a right-angled triangle using GH. Construct a 60° angle at H. Find the ‘triangle centre’: the point equidistant from all sides. H G X D F Answers

Questions? Comments? Suggestions? …or have you found a mistake!? Any feedback would be appreciated . Please feel free to email: tom@goteachmaths. co. uk