A First Course in the New MathematicsAllyn and Bacon, 1928 - 352 σελίδες |
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Σελίδα 82
... angle ABC shows how much the radius AB must turn about point B to reach the position of CB . The radii AB and CB are called the sides of the angle and point B is its vertex . As we cannot conveniently picture an angle as the rotation of ...
... angle ABC shows how much the radius AB must turn about point B to reach the position of CB . The radii AB and CB are called the sides of the angle and point B is its vertex . As we cannot conveniently picture an angle as the rotation of ...
Σελίδα 83
... angle . C + A An acute angle is an angle smaller B C than a right angle . Acute is another word for sharp . A An obtuse angle is an angle larger than a right angle and smaller than two right angles . Obtuse is another word for blunt . A C ...
... angle . C + A An acute angle is an angle smaller B C than a right angle . Acute is another word for sharp . A An obtuse angle is an angle larger than a right angle and smaller than two right angles . Obtuse is another word for blunt . A C ...
Σελίδα 84
... angle ; a right angle ; an obtuse angle ; a straight angle . Letter all of these angles . Try to do a good job of printed lettering . 4. In which of the angles you have just drawn is there a line perpendicular to another line of that ...
... angle ; a right angle ; an obtuse angle ; a straight angle . Letter all of these angles . Try to do a good job of printed lettering . 4. In which of the angles you have just drawn is there a line perpendicular to another line of that ...
Σελίδα 85
... angles ; two supplementary angles . 7. What kind of angle do you find at the corner of one of your books ? Name two other objects in the room which have the same kind of angle at the corners . 8. Make a drawing similar to the one on ...
... angles ; two supplementary angles . 7. What kind of angle do you find at the corner of one of your books ? Name two other objects in the room which have the same kind of angle at the corners . 8. Make a drawing similar to the one on ...
Σελίδα 86
Edward Ira Edgerton, Perry Amherst Carpenter. How Angles Are Measured . Angles are measured by degrees . A degree is of a right angle . 44 ° 15 ° 30 ° B Here is a right C angle divided in- to degrees . The small division 21 along OA is ...
Edward Ira Edgerton, Perry Amherst Carpenter. How Angles Are Measured . Angles are measured by degrees . A degree is of a right angle . 44 ° 15 ° 30 ° B Here is a right C angle divided in- to degrees . The small division 21 along OA is ...
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Άλλες εκδόσεις - Προβολή όλων
First Course in the New Mathematics Edward Ira Edgerton,Perry Amherst Carpenter Προβολή αποσπασμάτων - 1939 |
Συχνά εμφανιζόμενοι όροι και φράσεις
50 cents accuracy scores Algebra altitude amount automobile average bank bar graphs base bill Bisect bought bushels called cash cents a yard coach common fraction compasses Construct a triangle cubic feet decimal discount divide divisor dollars dozen equal estimate figure Find the area Find the interest formula Fourth Trial gallon geometry I. R. B. Test Illustrative Example improper fractions inches inches long James Marsden kilowatt-hours large square length line segment lowest terms marked price mathematics measure miles mixed number money order months multiply paid parallelogram percentage perpendicular problems protractor pupils quarts radius ratio received record rectangle represent Review Trial rhombus right angle rods ruler selling price side small squares sold Solution Steering Committee straight line Subtract supplementary angles teacher TESTS OF CHAPTER trapezoid Trial column TRIAL OF I. R. B. Trial scores whole number
Δημοφιλή αποσπάσματα
Σελίδα 341 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt...
Σελίδα 340 - Measures of Length 10 millimeters (mm) =1 centimeter cm 10 centimeters =1 decimeter dm 10 decimeters =1 meter m 10 meters =1 dekameter Dm 10 dekameters =1 hektometer Hm 10 hektometers =1 kilometer Km...
Σελίδα 341 - Time 60 seconds (sec.) = 1 minute (min.) 60 minutes = 1 hour (hr.) 24 hours = 1 day (da.) 7 days = 1 week (wk...
Σελίδα 340 - SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet — 1 square yard (sq.
Σελίδα 340 - Linear Measure 12 inches (in.) = 1 foot (ft.) 3 feet...
Σελίδα 271 - Spaces above this line are for the Postmaster's record, to be filled in by him. Application for Domestic Money Order Spaces below to be filled in by purchaser, or, if necessary, by another person for him Amount...
Σελίδα 7 - General Washington was born in 1732, and died in 1799: how old was he when he died?
Σελίδα 271 - Postmaster will insert here the office drawn on, when the office named by the remitter in the body of this application is not a Money Order Office.
Σελίδα 131 - In the course of your arithmetic and laboratory work you have learnt the following rule: To find the number of square units in the area of a rectangle, multiply together the numbers of units in the length and breadth of the rectangle.
Σελίδα 26 - A proper fraction is a fraction whose numerator is less than its denominator ; as, •£, -f , f. An improper fraction is one whose numerator is equal to, or greater than its denominator ; as, f, -f.