LLL, M M\,M and N N\,N are three radio masts on a diagram. 1 cm represents 200 metres.
L×L \timesL×
×M\times M×M
×N \times N\,×N
A receiver R R\,R is 800 metres from LLL. The receiver R R\,R is equidistant from M M\,M and NNN.
On the diagram, show the possible positions of RRR.

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