Trl157w21
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I need help on this question. Can someone please show me the step-by-step way of answering this with the answer.

Question 12 on this file, fireplace question:
http://filestore.aqa.org.uk/subjects...H-QP-JAN13.PDF

The mark scheme is here but I don't understand it.
http://filestore.aqa.org.uk/subjects...H-MS-JAN13.PDF
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gozzabomb
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if you look up locus points on youtube it will explain it, quite hard to explain this over text, but you're basically gonna need a compass and pencil and probably a ruler, once you get the hang of locus its easy
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brianeverit
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(Original post by Trl157w21)
I need help on this question. Can someone please show me the step-by-step way of answering this with the answer.

Question 12 on this file, fireplace question:
http://filestore.aqa.org.uk/subjects...H-QP-JAN13.PDF

The mark scheme is here but I don't understand it.
http://filestore.aqa.org.uk/subjects...H-MS-JAN13.PDF
A point equiidistant from the two aerial sockets must lie on the perpendicular bisector of the line joining those sockets, hence we require the point where this line meets the walls of the room. There will be two such points but only one of them satisfies the requirement regarding the fireplace.
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