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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.
A Grammar Shcool Arithmetic - Page 174
by George Albert Wentworth - 1886 - 372 pages

## A Higher Arithmetic

George Payn Quackenbos - Arithmetic - 1874 - 444 pages
...each a foot long. A Square Yard, a Square Rod, and a Square Mile, may be similarly defined. TABLE. 144 square inches (sq. in.), 1 square foot, sq. ft. 9 square feet, 1 square yard, sq. yd. 30J- square yards, 1 square rod, sq. rd. 40 square rods, 1 rood, . . . R. 4 roods, 1 acre, ... A. 640...

## First Book in Arithmetic: Including Oral and Written Exercises

Daniel W. Fish - Arithmetic - 1874 - 180 pages
...Surface or Square Measure is used in measuring surfaces ; as of land, boards, plastering, etc. TABLE. 144 Square Inches (sq. in.) = 1 Square Foot . . sq. ft. 9 Square Feet = 1 Square Yard . . sq. yd. 30J Square Yards = 1 Sq. Rod or Perch. sq. rd. ; P. 160 Square Rods = 1 Acre A. 640 Acres = 1 Square...

## The High School Arithmetic: Containig All the Matter Usually Presented in a ...

Philotus Dean - Arithmetic - 1874 - 472 pages
...STATES SURFACE MEASURE. 1. COMMON TABLE. Irregular scale of values. 144 square inches, (sq. in.,) make 1 square foot, sq. ft. 9 square feet, " 1 square yard, sq. yd. 30¿ square yards, or 1 «if sq. rd., pole, ) p 272¿ square feet, 3 1 or perch, j 40 square rods, or perches, " 1 rood,...

## The Normal Written Arithmetic: By Analysis and Synthesis, Designed for ...

Edward Brooks - Arithmetic - 1874 - 352 pages
...land, boards, amount of plastering, papering, painting, etc. TABLE. 144 square inches (sq. in.) equal 1 square foot, sq. ft. 9 square feet ... "1 square yard, sq. yd. 301 square yards ... "1 perch, . . P. 40 perches .... "1 rood, . . . R. 4 roods "1 acre, ... A. 640...

## The Complete Arithmetic: Oral and Written

Daniel W. Fish - Arithmetic - 1874 - 542 pages
...each side of which is 1 inch in length. TABLE. 144 Square Inches (sq. in.) = 1 Square Foot . . . . tq. ft. 9 Square Feet = 1 Square Yard . . . . sq. yd. 30} Square Yards = 1 Square Rod or Perch . sq rd., P. 160 Square Rods . = 1 Acre ....... A. sq.mi. A. sq. rd. sq.yd....

## A Practical Business Arithmetic ...

Lorenzo Fairbanks - 1875 - 472 pages
...square foot, a square whose sides are each one foot long, etc. TABLE. 144 Square Inches (sq. in.) make 1 Square Foot sq. ft. 9 Square Feet " 1 Square Yard sq. yd. 30} Square Yards " 1 Square Rod sq. rd. 40 Square Rods " 1 Square Rood R. 4 Roods " 1 Acre A. 640 Acres ;... •' 1...

## The Junior-class Arithmetic: Oral and Written : Designed for Graded Schools

Daniel W. Fish - Arithmetic - 1875 - 350 pages
...area and one side being given, the other side is found by dividing the area by the given side. TABLE. 144 Square Inches (sq. in.) = 1 Square Foot . . sq. ft. 9 Square Feet = 1 Square Yard . . eg. yd. 30i Square Yards = 1 Sq. Hod or Perch sq. rd. ; P. 160 Square Rods = 1 Acre A. 640 Acres...

## New Elementary Arithmetic: Embracing Mental and Written Exercises, for Beginners

Henry Bartlett Maglathlin - Arithmetic - 1875 - 216 pages
...159. Surface or Square Measure ia used in measuring surfaces. Table. 144 square inches (sq. in.) are 1 square foot, sq. ft. 9 square feet, 1 square yard, sq. yd. 30 J square yards, 1 square rod or perch, P. 160 square rods or perches, 1 acre, A. 640 acres, 1 square...