1. Attach a string to the top of the lower bank of the stream. Stretch the string across the stream perpendicularly and attach it to the other bank. The string must be horizontal,
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You take survey points across the river by either a boat or a cable apparatus over the river. At certain distances, you place a survey rod into the river and measure the elevation
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1. Multiply the side by 4. Since a square is comprised of four sides of equal length, if you know the length of one side of the square, then you automatically know the length of all
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Although it is different for pretty much each shape, the basic answer is just that you add up the sides. For circular shapes the formula is: Pi X Radius to the 2nd power.
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