Practical Mathematics: Instruction Paper, Volume 3American school of correspondence, 1912 |
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Page 107
... altitude may meet it . In a right triangle one leg may be considered as the base and the other as the altitude , Fig . 26 . B Fig . 27 . Rule : The sum of the angles of any triangle is equal to two right angles . This simple relation ...
... altitude may meet it . In a right triangle one leg may be considered as the base and the other as the altitude , Fig . 26 . B Fig . 27 . Rule : The sum of the angles of any triangle is equal to two right angles . This simple relation ...
Page 111
... altitude . Under denominate numbers the fact was brought out that surfaces or areas were measured by square measure , and that the area of the surface was proportional to the product of its two dimensions . If the surface is a triangle ...
... altitude . Under denominate numbers the fact was brought out that surfaces or areas were measured by square measure , and that the area of the surface was proportional to the product of its two dimensions . If the surface is a triangle ...
Page 112
... altitude A B is 10 inches . SOLUTION . Area = 1 2 ( A B × BC ) = 11⁄2 ( 10 × 10 ) = 50 square inches . 2 2. Find the area of a right triangle whose base is 50 feet and the hypotenuse 200 feet . SOLUTION . To obtain the altitude , make ...
... altitude A B is 10 inches . SOLUTION . Area = 1 2 ( A B × BC ) = 11⁄2 ( 10 × 10 ) = 50 square inches . 2 2. Find the area of a right triangle whose base is 50 feet and the hypotenuse 200 feet . SOLUTION . To obtain the altitude , make ...
Page 113
... altitude . A parallelogram is a quadrilateral whose opposite sides are parallel , Fig . 33 . B B C B Fig . 34. Rectangle . Fig . 35. Square . Fig . 36. Rhombus ... altitudes are the same , viz , the altitude of PRACTICAL MATHEMATICS 113.
... altitude . A parallelogram is a quadrilateral whose opposite sides are parallel , Fig . 33 . B B C B Fig . 34. Rectangle . Fig . 35. Square . Fig . 36. Rhombus ... altitudes are the same , viz , the altitude of PRACTICAL MATHEMATICS 113.
Page 114
Instruction Paper Glenn Moody Hobbs. altitudes are the same , viz , the altitude of the trapezoid . By a previous rule the areas of these triangles will be respectively 1 2 1 ( altitude X B C ) and ( altitude XA D ) 2 Therefore Area of ...
Instruction Paper Glenn Moody Hobbs. altitudes are the same , viz , the altitude of the trapezoid . By a previous rule the areas of these triangles will be respectively 1 2 1 ( altitude X B C ) and ( altitude XA D ) 2 Therefore Area of ...
Common terms and phrases
altitude base called characteristic circle circumference column cone conical surface cube root cubic curve shows cylinder decimal point denominator divided dividend division divisor example feet long feet per second figure Find the area Find the cube Find the logarithm Find the number Find the square Find the volume fraction given gives horizontal axis horizontal values horsepower hypotenuse kilowatt lateral area mantissa miles per hour Move the slide multiplied number of digits number of sides obtained P₁ parallelogram parallelopiped perpendicular Plot the curve polygon prism PROBLEMS FOR PRACTICE proportion pulley pyramid quadrilateral quantity quotient radius Remove the parenthesis rhombus right angles right triangle scale slant height slide rule SOLUTION spaces sphere square root straight line subtracting surface tangent term total area Transposing tungsten vertex vertical axis vertical values whole number zero
Popular passages
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.