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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.
How to Become Quick at Figures: Comprising the Shortest, Quickest, and Best ... - Page 115
by D. M. Garret - 1886 - 190 pages

## Inquire Within for Anything You Want to Know

Robert Kemp Philp - Cooking - 1858 - 454 pages
...by 9. Thus 212° — 32= 180 X 5 = 900 -t- 9 = 100. Ans. ' 3754. HOW TO LAY OFF A SQUARE A-CRE.— Measure 209 feet, on each side, and you have a square acre, within an inch. 3755. ROPES AND CABLES.— 6 feet make 1 fathom, 120 fallióme 1 cable length. 3756. VELOCITY OF SOUND...

## Orton's Lightning Calculator, and Accountant's Assistant: The Shortest ...

Hoy D. Orton - Mathematics - 1866 - 202 pages
...perches 1 rood 9 Sq. feet 1 sq. yard OJ Sq. yards 1 sq. rd orprch 4 Koods 1 acre. 040 Acres 1 sq. mile Measure 209 feet on each side, and you have a. square acre, within an inch. The following gives the comparative size, in square yards, of acres in different countries : English...

## Orton's Lightning Calculator and Accountant's Assistant

Hoy D. Orton - Ready-reckoners - 1871 - 202 pages
...perches 1 rood 9 Sq. feet 1 sq. yard | 4 Roods 1 acre ?0} Sq. yards 1 sq. rdorprch 640 Acres 1 sq. rail* Measure 209 feet on each side, and you have a square acre, within an inch. The following; gives the comparative size, in square yards, of acres in different countries : English...

## Henderson & Hamlin's Lightning Calculator: Containing the Shortest, Simplest ...

John Alexander Henderson - 1872 - 64 pages
...perch. 40 square perches .... 1 rood. 4 roods ............ 1 acre. 640 acres ........... 1 square mile. Measure 209 feet on each side and you have a square acre within an inch. The following gives the comparative size in square yards of acres in different countries : — English...

## The Complete Arithmetic: Oral and Written

Daniel W. Fish - Arithmetic - 1874 - 300 pages
...sq.ft. 9 Square Feet = 1 Square Yard . . sq. yd. 80} Square Yards = 1 Sq. Rod or Perch sq. rd.; P. 160 -Square Rods = 1 Acre A. 640 Acres = 1 Square Mile . . sq. mi. sq. mi. A. sq. rd. sq. yd. sq. ft. sq. in. 1 = 640 = 102400 = 3097600 = 27878400 = 4014489600 1 = 160...

## The Model Mental Arithmetic: Containing Oral Exercises for Graded and ...

Edgar Arthur Singer - Mental arithmetic - 1876 - 198 pages
...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. In measuring land, IS square rods are 1 Bquare chain (sq. ch.), and 10 square chains are 1 acre. III....

## Robinson's Progressive Practical Arithmetic: Containing the Theory of ...

Horatio Nelson Robinson, Daniel W. Fish - Arithmetic - 1877 - 372 pages
...Square Foot sq. ft. 9 Square Feet " 1 Square Yard sq. yd. 30J Square Yards " 1 Square Rod sq. rd. 160 Square Rods " 1 Acre A. 640 Acres " 1 Square Mile sq. mi. UNIT EQUIVALENTS. sq. ft. sq. in. sq. yd. 1 = 144 sq. rd. 1 = 9 = 1296 A. 1 = 30J = 272J = 39204 sq....

## The Rudiments of Written Arithmetic: Containing Slate and Black-board ...

Horatio Nelson Robinson - Arithmetic - 1877 - 212 pages
...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. UNIT EQUIVALENTS. sq. ft. sq. in. sq. yd. 1 = 144 sq. rd. 1 = 9 = 1276 A. 1 = 30} = 272i = 39204 eq....