A Treatise on Arithmetic, Combining Analysis and Synthesis: Adapted to the Best Mode of Instruction in Common Schools and AcademiesBrown, Taggard & Chase, 1857 - 355 σελίδες |
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Σελίδα 219
... angle . The point B , where the lines meet , is called the vertex of the angle . We call this the angle B ; if , how- ever , there are several angles at one point , as at C in Fig . 1 , it is necessary to designate the angle by three ...
... angle . The point B , where the lines meet , is called the vertex of the angle . We call this the angle B ; if , how- ever , there are several angles at one point , as at C in Fig . 1 , it is necessary to designate the angle by three ...
Σελίδα 220
... angle , is said to measure the angle ; thus , if the arc BD , Fig . 1 , is of the circumference , ( = 45 ° , ) the angle BCD is an angle of 45 ° . If the arc is of the circumference , ( = 90 ° , ) as DE in the angle DCE , or EF in ECF ...
... angle , is said to measure the angle ; thus , if the arc BD , Fig . 1 , is of the circumference , ( = 45 ° , ) the angle BCD is an angle of 45 ° . If the arc is of the circumference , ( = 90 ° , ) as DE in the angle DCE , or EF in ECF ...
Σελίδα 221
... angles is a right angle . B 16. A SQUARE is an equilateral rectangle . 17. A diagonal is a straight line , as AC , joining the vertices of two opposite angles . FIG . 9 . C B 18. A square , or any other fig- ure , having the vertex of ...
... angles is a right angle . B 16. A SQUARE is an equilateral rectangle . 17. A diagonal is a straight line , as AC , joining the vertices of two opposite angles . FIG . 9 . C B 18. A square , or any other fig- ure , having the vertex of ...
Σελίδα 222
... angle included between equal sides , perpendicular to the third side , it will bisect that third side ; i . e . , it will divide the third side into two equal parts . 2. The diagonal of a square ( Fig . 8. ) divides the square into two ...
... angle included between equal sides , perpendicular to the third side , it will bisect that third side ; i . e . , it will divide the third side into two equal parts . 2. The diagonal of a square ( Fig . 8. ) divides the square into two ...
Σελίδα 223
... angles of one triangle are respectively equal to two of another triangle , then the third angle of the one is equal to the third angle of the other and the two triangles are similar . 9. In similar triangles the sides of one are ...
... angles of one triangle are respectively equal to two of another triangle , then the third angle of the one is equal to the third angle of the other and the two triangles are similar . 9. In similar triangles the sides of one are ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
2d Principal acres altitude amount angle annex annuity arithmetical arithmetical series base Bought breadth bushels cent ciphers circle circumference common difference compound interest cost cube root cubic debt decimal fraction decimal places diameter Divide dividend divisible dollars dominical letter equal equated example feet long figure frustum gain gallons given number greatest common measure Hence hundred inches insured interest of $1 least common multiple length lower denomination marked price miles minuend months multiplicand Multiply NOTE number of terms OPERATION oxen payable payment plane polygon pound present worth PROB proportion quotient radius ratio Reduce remainder repetend rods RULE RULE.-Divide RULE.-Multiply separatrix Sept side simple slant height sold solid sphere square root subtract subtrahend surface thick thousandths trial divisor triangle Troy weight units vulgar fraction weight whole number wide yards
Δημοφιλή αποσπάσματα
Σελίδα 26 - The number to be divided is called the dividend. The number by which we divide is called the divisor.
Σελίδα 76 - To reduce a mixed number to an improper fraction, — RULE : Multiply the whole number by the denominator of the fraction, to the product add the numerator, and write the result over the denominator.
Σελίδα 43 - DRY MEASURE 2 pints (pt.) = 1 quart (qt.) 8 quarts =1 peck (pk.) 4 pecks = 1 bushel (bu...
Σελίδα 80 - Therefore, multiplying both terms of a fraction by the same number does not alter its value.
Σελίδα 210 - The square root of a number is one of its two equal factors.
Σελίδα 223 - The square described on the hypothenuse of a rightangled triangle is equal to the sum of the squares described on the other two sides.
Σελίδα 141 - RULE. Divide the given interest by the interest of the principal, for the given time, at 1 per cent., and the quotient will be the rate.
Σελίδα 51 - The least common multiple of two or more numbers is the least number that is exactly divisible by each of them.
Σελίδα 33 - To divide by 10, 100, &c., we simply cut off as many figures from the right of the dividend as there are ciphers in the divisor.
Σελίδα 75 - To reduce an improper fraction to a whole or mixed number, — RULE : Divide the numerator by the denominator ; the quotient will be the whole or mixed number.