 | Andrew Wheeler Phillips, Irving Fisher - Geometry - 1897 - 376 pages
...of a regular hexagon circumscribed about a circle whose radijis is /?. PROPOSITION XII. THEOREM 473. The area of a circle is equal to one-half the product of its radius and circumference. GIVEN— a circle with radius R, circumference C, and area 5. To PROVE 5 = £ R x C. Circumscribe a... | |
 | Virginia. Dept. of Education - Education - 1897 - 368 pages
...product of its base and altitude. 8. To construct a square equivalent to the sum of two given squares. 9. The area of a circle is equal to one-half the product of its radius by its circumference. 10. To inscribe a regular hexagon in a given circle. ZOOLOGY. 1. Describe briefly... | |
 | Henry W. Keigwin - Geometry - 1897 - 254 pages
...symmetry has a circle? 2. Prove that the circle has a center of symmetry. PBOPOSITION XIV. THEOREM. 364. The area of a circle is equal to one-half the product of its circumference and radius. [Use the area of a regular circumscribed polygon.] 365. COR. The area of... | |
 | James Howard Gore - Geometry - 1898 - 232 pages
...areas of an inscribed, and of a circumscribed, equilateral triangle. PROPOSITION IX. THEOREM. 304. The area of a circle is equal to one-half the product of its circumference and radius. (Compare 292.) F a E Let R denote the radius, C the circumference, and S... | |
 | Arthur A. Dodd, B. Thomas Chace - Geometry - 1898 - 468 pages
...arcs. 6. Any two rectangles are to each other as the products of their bases by their altitudes. 7. The area of a circle is equal to one-half the product of its circumference and radius. 8. A regular hexagon, ABCDEF, is inscribed in a circle whose radius is 4.... | |
 | Yale University - 1898 - 212 pages
...The areas of two similar triangles are to each other as the squares of any two homologous sides. 5. The area of a circle is equal to one-half the product of its circumference and radius. JUNE 1894. (b) 1. What is the number of degrees in each angle of a regular... | |
 | Mathematics - 1898 - 228 pages
...The areas of two similar triangles are to each other as the squares of any two homologous sides. 5. The area of a circle is equal to one-half the product of its circumference and radius. I JUNE 1894. • (b) 1. What is the number of degrees in each angle of a... | |
 | Webster Wells - Geometry - 1898 - 250 pages
...circumference of a circle is equal to its radius multiplied by 2 TT. PROP. XIII. THEOREM. 370. Thc area of a circle is equal to one-half the product of its circumference and radius. Given R the radius, C the circumference, and S the area, of aO. To Prove... | |
 | Webster Wells - Geometry - 1899 - 424 pages
...the circumference of a circle is equal to its radius multiplied by 2 TT. PROP. XIII. THEOREM. 370. The area of a circle is equal to one-half the product of its circumference and radius. Given E the radius, C the circumference, and S the area, of a O. To Prove... | |
 | Thomas Franklin Holgate - Geometry - 1901 - 462 pages
...equals 3r* — , and that the distance of any side from the centre is r — '— PROPOSITION IX 364. The area of a circle is equal to one-half the product of its circumference and radius. Let A be the area of the given circle, r its radius, and C its circumference.... | |
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The area of a circle is equal to one-half the product of its circumference and radius. 
