Class notes 6

# Now look at the marks on the left end of the line

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Unformatted text preview: . Slide the scale to the right until the 10 foot mark aligns with the right end of the line. Now, look at the marks on the left end of the line, left of the “0.” The left end of the line corresponds to the ninth mark left of the “0,” which in this case represents 9 inches. Thus, in a scale of 3/8 inch to 1 foot, this line represents an object 10 feet, 9 inches long. Example No. 4: Use the same line, but this time you are measuring a “water main” and the plans show a scale of 1 inch equals 20 feet. Use the engineer scale to measure this water line. Lay the engineer scale marked “20” on the left end of the line. The right end of the line should align with the number “8”. Remember to multiply that value by 10 to get an answer of “80 feet.” Try the activities on the next pages to test your new skills. The answers are found on the last page. 1. Measure the height and width of this rectangle. The scale is 1/4 inch equals 1 foot. Height: feet Width: feet 2. Measure the exterior dimensions of this rect...
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## This document was uploaded on 02/26/2014 for the course ES 302 at Western Oregon University.

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