General Mathematics, Βιβλίο 1Ginn, 1919 |
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
algebraic altitude arithmetic average Axiom bar diagram base boys called chapter has taught circle commutative law construct cube curve decimal distance divided division divisor equal numbers equation example exponent expressed factors figure find the area Find the number Find the value formula fraction geometric given angle graph graphic Hence hypotenuse illustrated inches interior angles length line segment logarithm mantissa mathematics measure method monomial multiplied number of degrees obtained parallelepiped parallelogram perigon perimeter perpendicular pictograms polygon polynomial preceding exercises protractor quadratic quotient radius ratio rectangle reflex angle represent result rhombus right angle right triangle scale sides similar triangles slide rule Solution solving square root squared paper statistics straight angle student subtraction supplementary angles theorem unit unknown number verbal problem vertex weight zero
Δημοφιλή αποσπάσματα
Σελίδα 208 - Divide the first term of the dividend by the first term of the divisor, and write the result as the first term of the quotient. Multiply the whole divisor by the first term of the quotient, and subtract the product from the dividend.
Σελίδα 443 - My lord, I have undertaken this long journey purposely to see your person, and to know by what engine of wit or ingenuity you came first to think of this most excellent help into astronomy, viz. the logarithms ; but, my lord, being by you found out, I wonder nobody else found it out before, when now known it is so easy.
Σελίδα 326 - If the product of two numbers -is equal to the product of two other numbers, either pair may be made the means, and the other pair the extremes, of a proportion.
Σελίδα 338 - The specific gravity of road oils, road tars, asphalt cements and soft tar pitches shall be expressed as the ratio of the weight of a given volume of the material at 25° C.
Σελίδα 148 - If two angles of one triangle are equal respectively to two angles of another triangle, the third angles are equal.
Σελίδα 331 - The measure of an exterior angle of a triangle is equal to the sum of the measures of the two remote interior angles.
Σελίδα 487 - All problems are based on actual experience. The slide rule is treated at length. Short methods and checks are emphasized. Clear explanations of the mechanical terms common to shop work and illustrations of the machinery and tools referred to in the text make the book an easy one for both student and teacher to handle. It should be useful in any school, elementary or advanced, where there are shops, as a review for supplementary work or as a textbook either in mathematics or shop work.
Σελίδα 351 - From the top of a hill the angles of depression of two successive milestones, on a straight level road leading to the hill, are observed to be 5° and 15°.
Σελίδα 340 - Two parallelograms having equal altitudes are to each other as their bases. 2. Two parallelograms having equal bases are to each other as their altitudes.
Σελίδα 340 - Any two triangles are to each other as the products of their bases by their altitudes.