Art. 110. Long Measure is used in measuring lines or distances. It is also called Linear Measure. The denominations are inches, feet, yards, rods, furlongs, and miles. = mi. 1 mi. 8 fur. 320 rd.=1760 yd.=5280 ft. = 63360 in. The following denominations are also used: 4 inches are 1 hand, {used in measuring the height of 3 feet are 1 pace. horses. 360 degrees (°) make the circumference of the earth. 6. How many yards in 5 rods? In 9 rods? 7. How many rods in 2 furlongs? In 5 furlongs? In 8 furlongs? 8. How many furlongs in 80 rods? In 120 rods? 9. How many furlongs in 6 miles? In 9 miles? 10. How many miles in 32 furlongs? In 56 furlongs? In 72 furlongs? 11. How many rods in 66 paces? 12. A ditch is 28 furlongs long: how many miles long is it? 13. A vessel sank in water 9 fathoms deep: what was the depth of water in feet? 14. A steamer sails 3 leagues an hour: how many hours will it take it to sail 90 miles? 15. A horse is 15 hands high: what is its height in feet? 16. How many feet in a rod? 17. How many rods in a mile? 18. What part of a foot is 9 inches? 19. What part of a yard is 2 feet? 20. What part of a mile is 5 furlongs? WRITTEN EXERCISES. 21. How many feet in 16 yards? inches? How many 22. How many inches in 3 fur. 20 rd. 3 yd.? 26. Reduce 32274 inches to higher denominations. 27. Reduce 4 mi. 27 rd. 2 ft. 10 in. to inches. 28. How many steps of 2 ft. 6 in. each will a man take in walking 2 miles? 29. How many times will a wheel 6 feet in circumference turn round in going 2 miles? 30. Sound travels 1090 feet a second: how many miles will it travel in 60 seconds? 31. How many rods of fence will be required to inclose a farm which is of a mile long and of a mile wide? LESSON IV. LAND OR SQUARE MEASURE. Art. 111. Land or Square Measure is used in measuring square rods or perches, roods, acres, and square miles. Table. 144 square inches (sq. in.) are 1 square foot. 9 square feet 30 square yards 40 perches. 4 roods 640 acres are 1 acre 92 NOTES.-1. Land Surveyors use Gunter's Chain, which is 4 rods or 66 feet long, and consists of 100 links, each link being 7,9% inches long. A square chain is 16 square rods, and 10 square chains are 1 acre. 2. Glazing and stone-cutting are estimated by the square foot; painting, plastering, paper-hanging, ceiling, and paving, by the square yard; and flooring, roofing, tiling, and brick-laying, by the square of 100 feet. Brick-laying is also estimated by the square yard, and by the 1000 bricks. For directions for measuring lumber, see Art. 157, Rule 6. 1. How many square feet in 5 square yards? In 7 square yards? 2. How many square yards in 36 square feet? In 72 square feet? In 90 square feet? 3. How many perches in 2 roods? In 5 roods? 4. How many roods in 80 perches? perches? In 120 5. How many roods in 8 acres? In 12 acres? 6. How many acres in 16 roods? In 40 roods? 7. How many square chains in 32 square rods? In 64 square rods? In 80 square rods? 8. How many acres in 20 square chains? square chains? In 80 square chains? In 40 9. How many square yards in a pavement 10 yards long and 4 yards wide? SOLUTION. In a pavement 10 yards long and 1 yard wide there are 10 square yards, and in a pavement 10 yards long and 4 yards wide there are 4 times 10 square yards, which is 40 square yards. There are 40 square yards in the pavement. |