maths for ages 11-16
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Maths for ages 11-16. The locus of points from a fixed point. A locus is a set of points that satisfy a rule or set of rules. A locus can be thought of as a path or region traced out by a moving point. The plural of locus is loci. 5 cm. - PowerPoint PPT PresentationTRANSCRIPT
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Maths for ages 11-16
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The locus of points from a fixed point
Imagine placing counters so that their centres are always 5 cm from a fixed point P.
P
The locus is a circle with a radius of 5 cm and centre at point P.
5 cm
Describe the locus made by the counters.
A locus is a set of points that satisfy a rule or set of rules.
A locus can be thought of as a path or region traced out by a moving point. The plural of locus is loci.
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The locus of points from a given shape
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Tethered goats
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Imagining paths
How could each path be representedin two and three dimensions?
A nervous woman pacesup and down in one of the capsules on the London Eyeas she ‘enjoys’ the view.
Some fluffy dice hang from the rear-view mirror in a car and swing from side to side as the car moves forwards.
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Turtle walking
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Grazing sheep
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Lost at sea
A rambler is lost. His mobile signal is picked up by 2 masts A and B on the coastline. This gives the distance of the phone from each mast. However, this gives two possible positions.
Why is only one correct?
AABB
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