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I am trying to develope code ,so i need a mathematics help to proceed,please help me to find distance of an object using trigonometry r any applicable maths without using any sensors r external devices to find distance of an object.

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The only solution to find the distance ther would be atleast two things are needed. Any side of triangle and an angle. OK?

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OP disappeared in August. –  Gerry Myerson Feb 18 '13 at 5:25
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