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Really stuck at this question.

In an experiment on sound interference, two sources A and B are placed 2m apart. As a girl walks from X to Y she hears a point of maximum loudness ar point P and the next at point Q. Using information from the diagram below find distances AQ and BQ.

http://img102.imageshack.us/img102/6814/capturewiz006qq6.jpg [Broken]

Any help would be welcome. Thanks.

PS. Answers = AQ- 12.4m BQ- 13m

In an experiment on sound interference, two sources A and B are placed 2m apart. As a girl walks from X to Y she hears a point of maximum loudness ar point P and the next at point Q. Using information from the diagram below find distances AQ and BQ.

http://img102.imageshack.us/img102/6814/capturewiz006qq6.jpg [Broken]

Any help would be welcome. Thanks.

PS. Answers = AQ- 12.4m BQ- 13m

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