An Arithmetic for Preparatory Schools, High Schools, and Academies

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A. Lovell & Company, 1889 - Arithmetic - 343 pages
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Page 79 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes =1 hour (hr.) 24...
Page 80 - Thirty days hath September, April, June, and November ; All the rest have thirty-one, Except the second month alone, Which has but twenty-eight, in fine, Till leap year gives it twenty-nine.
Page 78 - A Circle is a plane figure bounded by a curved line every point of which is equally distant from a point within called the center.
Page 315 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Page 38 - An Improper Fraction is one whose numerator is equal to or greater than its denominator ; as, f , -J.
Page 75 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30 square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.
Page 312 - A pyramid (Fig. 54) is a solid whose base is a polygon and whose sides are triangles uniting at a common point, called the vertex.
Page 27 - A number is divisible by 9 if the sum of its digits is divisible by 9.
Page 39 - Multiplying or dividing both numerator and denominator by the same number does not change the value of the fraction.
Page 76 - TABLE. 1728 cubic inches (cu. in.) =1 cubic foot (cu. ft.). 27 cubic feet = 1 cubic yard (cu. yd.). 53. Wood Measure is used in measuring wood and other merchandise. TABLE. 16 cubic feet = 1 cord foot (cd.

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