Essentials of Arithmetic, Volume 3

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Page 41 - 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 205 - Therefore, the square of a number contains the square of the tens, plus twice the product of the tens and units, plus the square of the units.
Page 176 - That there shall be levied, assessed, collected and paid annually upon the entire net income arising or accruing from all sources in the preceding calendar year to every citizen of the United States, whether residing at home or abroad...
Page 207 - Find the greatest square in the left-hand period and write its root for the first figure of the required root. Square this root, subtract the result from the left-hand period, and to the remainder annex the next period for a dividend.
Page 265 - TABLE OF SQUARE MEASURE 16 square rods (sq. rd.) = 1 square chain (sq. ch.). 10 square chains = 1 acre (A.). 640 acres = 1 square mile (sq. mi.). 36 square miles = 1 township (tp.).
Page 282 - How many cubic yards of earth must be .removed in digging a cellar 36 ft.
Page 84 - The solution of problems of this kind depends upon this principle: Given the product of two factors and one of the factors, the other factor may be found by dividing the product by the given factor, That is, if we...
Page 62 - That is, in any proportion, The product of the means equals the product of the extremes.
Page 208 - In a right triangle, the side opposite the right angle is called the hypotenuse and is the longest side.
Page 221 - Volume of a Pyramid. A contractor or builder occasionally needs to find the volume of a pyramid. The rule for finding the volume is easily seen by taking a hollow prism and a hollow pyramid of the same base and the same height, as here shown, filling the pyramid with water and pouring the water into the prism. It will be found that the prism can be exactly filled with three times the amount that fills the pyramid.

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