Books Books
The area of a circle is equal to the square of the radius multiplied by TT.
Elementary Algebra and Mensuration: Instruction Paper - Page 50
by American School (Lansing, Ill.) - 1902 - 72 pages

## The Quarterly Journal Of Agriculture

William Blackwood - 1831 - 986 pages
...-0795775 * ; and that product multiplied by the • This number is obtained in the following manner. The area of a circle is equal to the square of the circumference divided by 4 times 3-1416 (thecircumference of a circle, whose diameter is unity); or...

## A Key to Higher Arithmetic ...

James Bates Thomson - Arithmetic - 1852 - 108 pages
...Sum of areas added 14.52990 21.402TH Multiplied by i of height, 311 Ans. 677.73475 cu. ft. 77. Since the area of a circle is equal to the square of the diameter multiplied by .7854, (Art. 029,) it follows, that if the area of a circle is divided by .7854, the quotient will be the...

## Elements of Geometry and Trigonometry

Adrien Marie Legendre - Geometry - 1852 - 436 pages
...equal to the area CA ; hence, AMBx^CA is equal to the area of the sector. PROPOSITION XVI. THEOEEM. The area of a circle is equal to the square of the radius multiplied by the ratio of the diameter to the circumference. * Let the t circumference of the...

## The Practical Draughtsman's Book of Industrial Design: Forming a Complete ...

Jacques Eugène Armengaud (the Elder.), William Johnson - Architectural drawing - 1853 - 416 pages
...and the product of R into R is expressed by R -, or the square of the radius. It follows, then, that the area of a circle is equal to the square of the radius multiplied by the circumference, or 3-1416. Example. — Tin- radius of a circle being 1-05...

## Elements of Geometry and Trigonometry from the Works of A.M. Legendre ...

Charles Davies - Geometry - 1854 - 436 pages
...equal to the area CA ; hence, AMB x % CA is equal to the area of the sector. PROPOSITION XVI. THEOREM. The area of a circle is• equal to the square of the radius multiplied by the ratio of the d'ameter to the circumference. Let the circumference of the circle...

## the practical draughtsman's book of industrial design, and machinist's and ...

william johnson - 1854 - 212 pages
...and the product of R into R is expressed by R2, or the square of the radius. It follows, then, that the area of a circle is equal to the square of the radius multiplied by the circumference, or 3-1416. Example. — The radius of a circle being l-05m.,...

## Elements of Geometry and Trigonometry from the Works of A. M. Legendre ...

Adrien Marie Legendre, Charles Davies - Geometry - 1857 - 442 pages
...equal to the area CA ; hence, AMB x J CA is equal to the area of the sector. PROPOSITION XA7!. THEOREM. The area of a circle is equal to the square of the radius multiplied by the ratio of the diameter to the circumference. Let the circumference of the circle...

## The practical draughtsman's book of industrial design, tr. from ..., Issue 60

William Johnson - 1860 - 442 pages
...and the product of R into К is expressed by R-, or the square of the radius. It follows, then, that the area of a circle is equal to the square of the radius multiplied by the circumference, or 3-1416. Example. — The radius of a circle being 12 feet,...