Arithmetic for the Practical ManD. Van Nostrand, 1931 - 269 σελίδες |
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Σελίδα 182
... radius ; and the radius is the circumference divided by 6.2832 . Using symbols as before , this can be written C = 2TXR , R = C ÷ 2π , where 2 is 2X3.1416-6.2832 . The circle may be divided into a large number of narrow " pieces of pie ...
... radius ; and the radius is the circumference divided by 6.2832 . Using symbols as before , this can be written C = 2TXR , R = C ÷ 2π , where 2 is 2X3.1416-6.2832 . The circle may be divided into a large number of narrow " pieces of pie ...
Σελίδα 183
... radius or the diameter alone be known . In symbols they can be written π A = TXR2 , or A = -XD2 . Thus , the area of a circle of 5 inch radius , or 10 inch diameter , is 3.1416 × 52 = 3.1416 × 25 = 78.54 sq . in . , or .7854 × 102 ...
... radius or the diameter alone be known . In symbols they can be written π A = TXR2 , or A = -XD2 . Thus , the area of a circle of 5 inch radius , or 10 inch diameter , is 3.1416 × 52 = 3.1416 × 25 = 78.54 sq . in . , or .7854 × 102 ...
Σελίδα 196
... radius can be found when the altitude and the surface or volume are known , and the altitude can be found when the diameter or radius and the surface or volume are known . 119. The Cone . If one leg of a right triangle is held ...
... radius can be found when the altitude and the surface or volume are known , and the altitude can be found when the diameter or radius and the surface or volume are known . 119. The Cone . If one leg of a right triangle is held ...
Περιεχόμενα
CHAPTER I | 3 |
SUBTRACTION | 10 |
CHAPTER III | 18 |
Πνευματικά δικαιώματα | |
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added amount angle anti-log arithmetical progression bushels calculation called chapter ciphers circle circumference column common difference common fraction common logarithms complete quotient compound number cone cube root cubic curve cylinder decimal fraction decimal number decimal places decimal point degrees denominate number diameter distance divided dollars equal equator equivalent example exponent expressed factors geometrical progression given number graph hypotenuse illustrated inches indicated last figure last term lateral surface latitude length logarithms longitude mantissa means measure method metric system miles minuend multiply number of terms partial dividend periodic rate plane figures poles prime meridian proportion pyramid quotient radius ratio rectangle rectangular solid remainder represent result right triangle side Similarly simple slant height sphere square and cube square root subtracted subtrahend surface area symbols temperature tion unit volume weight whole number write written