Junior High School Mathematics, Book 1

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Page 247 - CUBIC MEASURE 1728 cubic inches (cu. in.) =1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu. yd.) 128 cubic feet = 1 cord (cd...
Page 248 - Time 60 seconds (sec.) = 1 minute (min.) 60 minutes = 1 hour (hr . ) 24 hours = 1 day (da.) 7 days = 1 week (wk.) 12 months (mo.) — 1 year (yr.) 365 days — 1 common year 366 days = 1 leap year...
Page 247 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt.) 4 quarts = 1 gallon (gal.) 31£ gallons = 1 barrel (bbl...
Page 247 - 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. mi.) CUBIC MEASURE 1728 cubic inches (cu.
Page 241 - In a right triangle, the side opposite the right angle is called the hypotenuse and is the longest side.
Page 240 - Separate the number into periods of two figures each, beginning at units. Find the greatest square in the left-hand period and write its root for the first figure of the required root.
Page 41 - To multiply a fraction by a fraction, multiply the numerators together for the numerator of the product, and the denominators together for the denominator of the product.
Page 238 - Which proves that the square of a number composed of tens and units contains, the square of the tens plus twice the product of the tens by the units, plus the square of the units.
Page 184 - The first and last terms of a proportion are called the extremes ; the second and third terms are called the means. In the proportion | = ££, we see that 7 x 15 = 3 x 35.
Page 237 - The side of a square is equal to the square root of half the square of its diagonal.

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