Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Books Books
" RULE. — From half the sum of the three sides, subtract each side separately; multiply the half -sum and the three remainders together; the square root of the product is the area. "
Mensuration for Beginners: With Numerous Examples - Page 74
by Isaac Todhunter - 1869 - 296 pages
Full view - About this book

Putnam's Arithmetic

Rufus Putnam - Arithmetic - 1849 - 276 pages
...sides of the field; add them together, and from half their sum subtract each side separately ; then multiply the half sum and the three remainders together ; the square root of this product will be the area. 10. The three sides of a triangular field measure 15, 20 and 25 rods...
Full view - About this book

An Introductory Treatise on Mensuration in Theory and Practice ...

John Radford Young - Measurement - 1850 - 294 pages
...Ans. 28-2 yards. PROBLEM IV. — To find the area of a triangle when all its three sides are given. RULE. — From half the sum of the three sides subtract each side severally. Multiply the half sum and the three remainders together, and the square root of the product...
Full view - About this book

A Rudimentary Treatise on Land and Enigineering Surveying with All the ...

Thomas Baker - Railroads - 1850 - 244 pages
...has been made, and the work must be repeated. TO FIND THE AREA OF A TRIANGLE FROM THE THREE SIDES. RULE. From half the sum of the three sides subtract each side severally and reserve the three remainders; multiply the half sum continually by the three remainders,...
Full view - About this book

An elementary course of practical mathematics, Part 2

James Elliot - 1851 - 152 pages
...the Three Sides are given. RULE. Add together the three sides, and halve the sum. From the half sum subtract each side separately. Multiply the half sum...remainders together. The square root of the product will be the area. NOTE 1. The first part of the work may be proved, by observing if the sum of the...
Full view - About this book

A Theoretical and Practical Arithmetic: Designed for Common Schools and ...

Daniel Leach - Arithmetic - 1851 - 280 pages
...is 80 yards ? 364. To find the area of a triangle, when the length of its three sides is known,— RULE. From half the sum of the three sides subtract each side separately. Then multiply the half sum by each side in succession. The square root of the continued product will...
Full view - About this book

A Treatise on a Box of Instruments and the Slide-rule: For the Use of ...

Thomas Kentish - Geometrical drawing - 1852 - 272 pages
...separately; multiply the four remainders together; the square root •will be the area. For the triangle, from half the sum of the three sides subtract each side separately ; multiply the three remainders and the half sum together ; the square root will be the area. gram, and therefore...
Full view - About this book

A Theoretical and Practical Arithmetic: Designed for Common Schools and ...

Daniel Leach - Arithmetic - 1853 - 622 pages
...a triangle ? 364. To find the area of a^ triangle, when the length of its three sides is known, — RULE. From half the sum of the three sides subtract each side separately. Then multiply the half sum by each side in succession. The square root of the continued product will...
Full view - About this book

A Treatise on a Vox of Instruments and the Slide-rule: For the Use of ...

Thomas Kentish - Mathematical instruments - 1854 - 268 pages
...separately; multiply the four remainders together; the square root will be the area. For the triangle, from half the sum of the three sides subtract each side separately; multiply the three remainders and the half sum together ; the square root will be the area. gram, and therefore...
Full view - About this book

The course of arithmetic as taught in the Pestalozzian school, Worksop ...

J L. Ellenberger - 1854 - 336 pages
...parallelogram, having the same base and the same altitude. The area of a triangle is also found as follows : From half the sum of the three sides, subtract each side separately, multiply this half sum and the three remainders continually together, and extract the square root of the product,...
Full view - About this book

The Mechanic's, Machinist's, and Engineer's Practical Book of Reference ...

Charles Haslett - Engineering - 1855 - 482 pages
...base by a perpendicular let fall from the opposite angle, and take half the product for the area. Or, from half the sum of the three sides subtract each side separately, and multiply the three remainders so obtained and the half sum together, and the square root of the...
Full view - About this book




  1. My library
  2. Help
  3. Advanced Book Search
  4. Download EPUB
  5. Download PDF