. Arithmétique complète . ent de terre le squeredekameter est appelé un are (prononcé ^r) ; le squearehektomètre est appelé un hektare (ha.). Les équidés de hektare 2,47 acres, ou presque 2^ acres. EXERCICE 196 Express en mètres carrés : 1. 275 km carrés 4. 4875 m². 2. 3.45 km carrés 5. 9235 m². 3. 0.75 km carrés 6. 64,275 m². 7. 123,450 mm2. 8. 2,250,000 mm2. 9. 37,375,000 mm2. Express comme hehtares: 10. 10,000 m² 12. 175,000 m² 11. 45,000 m² 13. 325,500 m² 14. 24.7 acres. 15. 1482 acrea 16. Combien de temps est un champ carré qui contient 0.81 ha. ? MESURE CUBIQUE 351 371. Moi cubique

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. Complete arithmetic . ent of land the squaredekameter is called an are (pronounced ^r) ; the squarehektometer is called a hektare (ha.). The hektare equals2.47 acres, or nearly 2^ acres. EXERCISE 196 Express as square meters: 1. 275 sq. km. 4. 4875 sq. cm. 2. 3.45 sq. km. 5. 9235 sq. cm. 3. 0.75 sq. km. 6. 64, 275 sq. cm. 7. 123, 450 sq. mm. 8. 2, 250, 000 sq. mm. 9. 37, 375, 000 sq. mm. Express as hehtares: 10. 10, 000 sq. m. 12. 175, 000 sq. m. 11. 45, 000 sq. m. 13. 325, 500 sq. m. 14. 24.7 acres. 15. 1482 acrea 16. How long is a square field that contains 0.81 ha. ? CUBIC MEASURE 351 371. Cubic Measure. In cubic measure the scale is by thou-sands. If the cube here shown represents a cubic meter, it is evident that each of the ten equal layers representsone tenth of a cubic meter; thateach of the rectangular solids, DC, represents -^ of -J^ of acubic meter, and that each of thesmall cubes represents -j^q of -^^of yi(y, or ToVo? ^^ ^ cubic meter.That is, 1000 cubic decimeters= 1 cubic meter. The table is as follows;. A cubic hekto meterA cubic dekameter Cubic meter (cu. ra.)A cubic decimeter (cu. dm.) =A cubic centimeter (cu. cm.) =A cubic millimeter (cu. mm.) = = 1, 000, 000 cubic meters= 1, 000 cubic meters 0.001 of a cubic meter 0.000001 of a cubic meter0.000000001 of a cubic meter We may also have cubic kilometers and cubic myriameters. Theterms above the cubic meter are seldom used. 372. Wood Measure. In measuring wood the cubic meteris called a store (st.). Stere is pronounced stair, i EXERCISE 197 Express as cubic meters: 1. 725.25 St. 2. 2, 750, 000 cu. dm. 3. 4, 625, 750 cu. dm. 4. 9, 125, 000 cu. dm. 5. 8, 125, 000, 000 cu. mm. 6. 9, 275, 000, 000 cu. mm. 7. 25, 325, 000, 000 cu. mm. 8. 37, 250, 000, 000 cu. mm. 9. A pile of wood is 2.5 m. high, 1 m. wide, and 28.7 m.long. How many steres are there ? 352 METRIC MEASURES 373. Measures of Capacity. The table of capacity is as follows: A hektoliter (hi.) = 100 liters A dekaliter = 10 liters Liter (1.) A deciliter (dl.) = 0.1 of a liter A

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