Year 9 Loci Worksheets | Printable PDFs
Year 9 Loci worksheets for Year 9 Maths (Key Stage 3). Students aged 13–14 learn how to construct and interpret loci using a ruler and compass. Loci (plural for locus) is the set of all points that satisfy a given condition or rule. The loci that is equidistant from two points is the perpendicular bisector.
Students may need to study Year 9 Constructions Worksheets before they tackle Loci. Below, students practise constructing loci and solving loci problems involving distances and geometric constraints. For scale and bearings see Year 9 Bearings Worksheets.
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Common Questions about Year 9 Loci
What is a locus?
A locus is a set of points that satisfy a particular rule or condition.How is a locus a fixed distance from a point constructed?
Use a compass to draw a circle with the required radius centred on the given point.Why are construction lines important in loci problems?
Construction lines show how the locus was created and help demonstrate accuracy when solving problems.
Year 9 Loci Common Mistakes
Common Mistake 1
Drawing freehand curves instead of accurate compass constructions.Common Mistake 2
Ignoring part of the description and constructing only one of the required loci.Common Mistake 3
Rubbing out construction arcs that are needed to show the method.
Loci Worksheets - Free Worksheets Above
Loci Problems
Constructing Loci
Constructing Loci