Wentworth & Hill's Exercise Manuals: Arithmetic, Issue 1

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Ginn, 1896 - Arithmetic - 296 pages
 

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Page 81 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30j square yards = 1 square rod (sq.
Page 82 - CUBIC MEASURE 1728 cubic inches (cu. in.) =1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu. yd.) 128 cubic feet = 1 cord (cd...
Page 84 - For the purpose of measuring angles, the circumference is divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes; each minute into 60 equal parts, called seconds.
Page 244 - A circle is a plane figure bounded by a curved line, called the circumference, every point of which is equally distant from a point within called the center.
Page 83 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes = 1 hour (hr.) 24 hours = 1 day (da.) 7 days = 1 week (wk.) 365 days = 1 common year (yr.) 366 days . = 1 leap year (1.
Page 83 - Troy Weight. 24 grains (gr.) - 1 pennyweight (dwt.) 20 pennyweights — 1 ounce (oz.) 12 ounces — 1 pound (1b.).
Page 163 - Sixty days after sight of this first of Exchange (Second and Third of the same tenor and date unpaid...
Page 240 - A polygon having three sides is called a triangle; having/our sides, a quadrilateral; having five sides, a pentagon; having six sides, a hexagon: having eight sides, an octagon; having ten sides, a decagon; having twelve sides, a dodecagon. The area of any polygon may be found by dividing it into triangles by means of diagonals, computing the areas of these triangles, and adding the results.
Page 244 - It follows that the ratio of the circumference of a circle to its diameter is the same for all circles.
Page 256 - How many cubic yards of earth must be dug out in making a tunnel 100 yds. long, whose section is a semicircle with a radius of 10 ft. ? 417. The bill for digging a well 45 ft. deep, and 3 ft. 9 in. in diameter was $82.50. Find the charge per cubic yard. 418. If a cubic foot of brass is drawn into a wire ^ of an inch in diameter, what will be the length of the wire? 419. What will it cost to sink a well 50 ft. deep and 3f ft. in diameter, at $3.48 per cubic yard?

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