 | James B. Dodd - Arithmetic - 1852 - 410 pages
...6. Find approximate values of 2.17. Ans. 2j, 2j, 2f\. 7. Find three approximate values of 3.14159', which is the ratio of the circumference to the diameter of a circle. Ans. 81, 3^, Iff? ARITHMETICAL PROGRESSION. $ 34O. An ARITHMETICAL PROGRESSION is a series of quantities... | |
 | James B. Dodd - 1853 - 398 pages
...-$&. 5. Find approximate values of .329. Ans. J, ff. ^. 7. Find three approximate values of 3.14159', which is the ratio of the circumference to the diameter of a circle. 6. Find approximate values of 2.17. Ans. 2J, 2^, 2^. ARITHMETICAL PROGRESSION. § 34O. An ARITHMETICAL... | |
 | Archibald Hastie Dick - 1876 - 138 pages
...that would not be easily perceived, and would not affect the roundness of the globe. EXERCISES. What is the ratio of the circumference to the diameter of a circle ? If the length of a degree of a circle were known, how could the whole circumference be known ? How... | |
 | Edward Tomkins - Machinery - 1878 - 376 pages
...minute, the velocity of its perimeter in feet per minute = 60 x 2 x ir, where TT is a constant, and is the ratio of the circumference to the diameter of a circle; therefore, if we reduce or increase the number of revolutions of the pulley we reduce or increase its... | |
 | John Cameron Gray - Arithmetic - 1910 - 556 pages
...circumference. If we divide the circumference by the number, the quotient is the diameter. To define it, 3.1416 is the ratio of the circumference to the diameter of a circle. j. Form of Solution Find the capacity of a cylindrical can 25 inches deep and 12 in. in diameter. (Can... | |
 | John Charles Stone, James Franklin Millis - Algebra - 1911 - 698 pages
...population. Express this rate or ratio as a common fraction in its lowest terms. As a decimal. % 4. What is the ratio of the circumference to the diameter of a circle? Are the circumference and the diameter commensurable? Why not ? Б. One cubic foot of iron weighs 450... | |
 | Herbert Ellsworth Slaught, Nels Johann Lennes - Algebra - 1912 - 508 pages
...work that there are other irrational numbers besides indicated roots. For instance, the number ->r, which is the ratio of the circumference to the diameter of a circle, is an irrational number though it is not an indicated root. It is shown in higher algebra that irrational... | |
 | Frederick Converse Beach, George Edwin Rines - Encyclopedias and dictionaries - 1912 - 822 pages
...expressible in terms of the other. Thus the whole angle, or 360°, being equal to 2-n radians, where it is the ratio of the circumference to the diameter of a circle (see GEOMETRY, ELEMENTARY PURE), it is seen that i radian = 57. 3° (approximately), r. radians = 180°,... | |
 | Edwin Fitch Northrup - Electric resistance - 1912 - 416 pages
...249.0 332.3 499.0 999.0 II. — MATHEMATICAL QUANTITIES AND RELATIONS. (1) Functions of IT and e. •K is the ratio of the circumference to the diameter of a circle. e is the basis of the natural logarithms. •K = 3.14159 - = 0.31830 7T T2 = 9.86960 v^ = 1.77245 logio... | |
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... which is the ratio of the circumference to the diameter of a circle. 
