The Practical Arithmetic: Oral and WrittenAmerican Book, 1907 - 350 σελίδες |
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Σελίδα 7
... Triangles Angles ― Trapezoid and Trapezium - Angles Pentagon - Angles • 221 223 224 226 229 Hexagon Angles - 230 Rectangles - Area Rhombus and Rhomboid Triangles - Area Trapezoid Area — Right Triangle - Sides 232 • Area 233 234 235 236 ...
... Triangles Angles ― Trapezoid and Trapezium - Angles Pentagon - Angles • 221 223 224 226 229 Hexagon Angles - 230 Rectangles - Area Rhombus and Rhomboid Triangles - Area Trapezoid Area — Right Triangle - Sides 232 • Area 233 234 235 236 ...
Σελίδα 88
... triangle measures 4 rods on one side . What is the distance around it ? b . A piece of land in the form of an equilateral tri- angle measures 463 rods on one side . What is the distance around it ? 3. The perimeter of a piece of land ...
... triangle measures 4 rods on one side . What is the distance around it ? b . A piece of land in the form of an equilateral tri- angle measures 463 rods on one side . What is the distance around it ? 3. The perimeter of a piece of land ...
Σελίδα 224
... triangle has sides and angles . 2. A right triangle has one right angle ; that is , one angle of degrees . 3. An isosceles triangle has two angles that are equal and two sides that are equal . 4. An equilateral triangle has equal sides ...
... triangle has sides and angles . 2. A right triangle has one right angle ; that is , one angle of degrees . 3. An isosceles triangle has two angles that are equal and two sides that are equal . 4. An equilateral triangle has equal sides ...
Σελίδα 225
... triangle is equal to right angles or — degrees . 2. In a right triangle there is one right angle . The other two angles are together equal to 3. In a right triangle one of the angles is an angle of 40 ° . How many degrees in each of the ...
... triangle is equal to right angles or — degrees . 2. In a right triangle there is one right angle . The other two angles are together equal to 3. In a right triangle one of the angles is an angle of 40 ° . How many degrees in each of the ...
Σελίδα 226
... triangles . Remember that the sum of the angles of two triangles is equal to four right angles . Observe that the sum of the angles of the two triangles is equal to the sum of the angles of the quadrilateral . So the sum of the angles ...
... triangles . Remember that the sum of the angles of two triangles is equal to four right angles . Observe that the sum of the angles of the two triangles is equal to the sum of the angles of the quadrilateral . So the sum of the angles ...
Συχνά εμφανιζόμενοι όροι και φράσεις
12 rods acres altitude answer bicycle geared bought bushel centimeters chains Change circle circumference commission common fraction contained cord corn cube cubic centimeters cubic foot decimal point decimeters denominator diameter discount Divide dividend dollars equal exactly divisible excess of 9's EXPLANATION Express the ratio figure Find proceeds Find the amount Find the approximate Find the area Find the cost Find the interest Find the product Find the sum greatest common divisor HALL'S PRACT hundred hundredths improper fraction integral number larger number lowest terms Measure meters miles mixed number multiplicand NOTE number of feet oats Observe OPERATION paid perfect squares perimeter piece of land pound prime factors promise to pay pupil quotient right angles rods selling smaller number sold solid content specific gravity square root subtract tenths thousandths tons trapezoid triangle units value received weight wide
Δημοφιλή αποσπάσματα
Σελίδα 180 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes =1 hour (hr.) 24...
Σελίδα 173 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt...
Σελίδα 190 - OF WEIGHT 10 milligrams (mg.) = 1 centigram (eg.) 10 centigrams = 1 decigram (dg.) 10 decigrams = 1 gram (g.) 10 grams = 1 dekagram (Dg...
Σελίδα 157 - SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet — 1 square yard (sq. yd.) 30^ square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.
Σελίδα 187 - MEASURE. 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.) 10 kilometers = 1 myriameter (Mm.) 1 meter = 39.37 inches.
Σελίδα 89 - Multiplying or dividing both terms of a fraction by the same number does not change the value of the fraction.
Σελίδα 205 - The first and fourth terms of a proportion are called the extremes, and the second and third terms, the means. Thus, in the foregoing proportion, 8 and 3 are the extremes and 4 and 6 are the means.
Σελίδα 187 - Pupils must learn to think of quantity in metric units. 319. All units in the metric system of measures and weights are derived from the primary unit known as the meter. When the length of the primary unit of this system was determined it was supposed to be one ten-millionth of the distance from the equator to the pole. A pendulum that vibrates seconds is nearly one meter long.* In the names of the derived units of this system the prefix deka means 10; hekto means 100; kilo means 1000; myria means...
Σελίδα 135 - Six months after date for value received I promise to pay to the order of Merchants...
Σελίδα 190 - MEASURES OF WEIGHT 10 milligrams (mg.) = 1 centigram eg. 10 centigrams =1 decigram dg. 10 decigrams =1 gram g. 10 grams =1 decagram Dg. 10 decagrams =1 hectogram Hg. 10 hectograms = 1 kilogram Kg.