Arithmetic for the Practical ManD. Van Nostrand, 1931 - 269 σελίδες |
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Σελίδα 181
... diameter gives the quotient T = 3.1416 to a very close approximation , we can say that for all practical purposes , The circumference of any circle is 3.1416 times the diameter ; and the diameter is the circumference divided by 3.1416 ...
... diameter gives the quotient T = 3.1416 to a very close approximation , we can say that for all practical purposes , The circumference of any circle is 3.1416 times the diameter ; and the diameter is the circumference divided by 3.1416 ...
Σελίδα 183
... 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 = .7854X 100 78.54 ...
... 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 = .7854X 100 78.54 ...
Σελίδα 202
... diameter . Using abbreviations as before , these rules become , in symbols : A = πXD2 ; V == XD3 . 6 The surface ... diameter 17 ft . and slant height 30 ft . ( 5 ) Find the total surface area of a cone of base diameter 6 ft . and slant ...
... diameter . Using abbreviations as before , these rules become , in symbols : A = πXD2 ; V == XD3 . 6 The surface ... diameter 17 ft . and slant height 30 ft . ( 5 ) Find the total surface area of a cone of base diameter 6 ft . and slant ...
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