Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Books Books
" Multiply half the circumference by half the diameter, and the product will be the area. Or, divide the product of the whole circumference and diameter -by 4, and the quotient will be the area. 2. Multiply the square of the diameter by .7854, and the product... "
An essay on mechanical geometry, explanatory of a set of models - Page 65
by Benjamin Donne - 1796
Full view - About this book

Principles of geometry, mensuration, trigonometry, land-surveying, and ...

Thomas Tate (mathematical master.) - 1848 - 284 pages
...in the arc whose length is 14. Ans. 100° 16' 2". 9. PROBLEM. To find the area of a circle. RULE. 1. Multiply half the circumference by half the diameter, and the product will be the area. (See Geo. Art. 75.) 2. Multiply the square of the diameter by -7854, and the product will be the area....
Full view - About this book

Principles of Architecture: Comprising Fundamental Rules of the Art, with ...

Peter Nicholson, Joseph Gwilt - Architectural drawing Technique - 1848 - 750 pages
...greater segment. PROBLEM XVI. PLATE 51. To find the area of a circle, the diameter being given. METHOD I. Multiply half the circumference by half the diameter, and the product will be the area. • EXAMPLE. Wfiat is the area of a circle whose diameter is 28 feet, and its circumference 88 feet?...
Full view - About this book

A Treatise on Surveying and Civil Engineering, Wherein Everything that is ...

P. O'Shaughnessy (Civil engineer) - Civil engineering - 1848 - 110 pages
...nearly. And circles are to each other as the squares of their diameters. Eucl. 2. 12, &c. Or thus — -Multiply half the circumference by half the diameter, and the product will give the area. (Proof—- Every circle may be divided into a regular polygon of an infinite number...
Full view - About this book

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

John Radford Young - Measurement - 1850 - 294 pages
...from 360°, proceeding afterwards as in the nit. PROBLEM VI. — To find the area of a circle. RULE L Multiply half the circumference by half the diameter and the product will be the area. RULE. II. Multiply the square of the diameter by '7854, and the product will be the area. NOTE .—...
Full view - About this book

The Practical Model Calculator: For the Engineer, Mechanic, Machinist ...

Oliver Byrne - Engineering - 1851 - 310 pages
...the chord of half the arc gives 64-2959 = the length of the arc. To find the area of a circle. — Multiply half the circumference by half the diameter, and the product will be the area. Or take J of the product of the whole circumference and diameter. What is the area of a circle whose...
Full view - About this book

Text-book of Modern Carpentry: Comprising a Treatise on Building-timber ...

Thomas William Silloway - Carpentry - 1858 - 236 pages
...less than a semicircle. PROBLEM X. TO FIND THE AREA OF A CIRCLE, THE DIAMETER BEING GIVEN. RULE. — Multiply half the circumference by half the diameter, and the product will be the area. PROBLEM XI. TO FIND THE AREA OF A SECTOR OF A CIRCLE. RULE. — Multiply the radius, or half the diameter,...
Full view - About this book

Commercial class book

Alfred Newsom Niblett - 1861 - 204 pages
...circumference by 31416 and the quotient will be the diameter. PROBLEM 9. To find the area nf a circle. EULES. Multiply half the circumference by half the diameter and the product will be the area. Or, divide the product of the whole circumference and diameter by 4, and the quotient will be the area....
Full view - About this book

The Practical Model Calculator, for the Engineer, Mechanic, Machinist ...

Oliver Byrne - Engineering - 1863 - 600 pages
...the chord of half the arc gives 64-2959 = the length of the arc. To find the area of a circle. — Multiply half the circumference by half the diameter, and the product will be the area. Or take \ of the product of the whole circumference and diameter. What is the area of a circle whose...
Full view - About this book

The Builder's Pocket Companion: Containing the Elements of Building ...

A. C. Smeaton - Building - 1867 - 314 pages
...PROBLEM VIII. To find the Area of a Circle. 1. When the diameter and circumference are both given. RULE. Multiply half the circumference by half the diameter, and the product will be the area. 2. When the diameter is given. RULE. Multiply the square of the diameter by .7854, and the product...
Full view - About this book

Moffatt's pupil teachers' course (ed. by T. Page). Candidates, 2nd (-4th) year

Moffatt and Paige - 1879 - 506 pages
...24' being 12 ft., find the diameter of the circle. VIII. To find the Area of a Circle. Rules. — (a) Multiply half the circumference by half the diameter, and the product will be the area required. (b) Multiply the square of the diameter by 7854, and the product will be the area. Proof....
Full view - About this book




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