Calculate the length from a photograph. A ruler finds the standard in the picture, and is made by in
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S-Parts Inc.
Land Mgmt.
Calculate the area of land using a map .To point to the vertex using the GPS.Or to point to the poin
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Calculate the length from a photograph. A ruler finds the standard in the picture, and is made by in
看更多 » Calculate the area of land using a map .To point to the vertex using the GPS.Or to point to the poin
看更多 »