Practical Mathematics: Instruction Paper, Volume 3

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American school of correspondence, 1912

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Page 126 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Page 115 - A circle is a plane figure bounded by a curved line, called the circumference, every point of which is equally distant from a point within called the center.
Page 105 - Every circumference of a. circle, whether the circle be large or small, is supposed to be divided into 360 equal parts called degrees. Each degree is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds.
Page 115 - A circle is a plane figure contained by one line, which is called the circumference, and is such, that all straight lines drawn from a certain point within the figure to the circumference are equal to one another : 16. And this point is called the centre of the circle.
Page 135 - If the characteristic is negative, make the number of zeros between the decimal point and the first significant figure of the corresponding number one less than the number of units in the characteristic.
Page 125 - The altitude of a cone is the perpendicular distance from the vertex to the base.
Page 135 - If the number is less than 1, make the characteristic of the logarithm negative, and one unit more than the number of zeros between the decimal point and the first significant figure of the given number.
Page 133 - The logarithm of the root of a number is found by dividing the logarithm of the number by the index of the root.
Page 87 - ... subtract the product from the dividend, and to the remainder annex the next period for the next dividend.
Page 106 - Polygons are classified according to the number of sides. A triangle is a polygon of three sides. A quadrilateral is a polygon of four sides. A pentagon is a polygon of five sides. A hexagon is a polygon of six sides.

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