 | Papermaking - 1921 - 488 pages
...of the two preceding examples, . =1 -_ = 95. Area of Sector and Segment. — The area of any sector of a circle is equal to one-half the product of its radius and arc. Let l = the length of the arc and r = the radius, then A = Mrl. (1) It will be noted that this... | |
 | Julius J. H. Hayn - Geometry, Plane - 1925 - 328 pages
...polygon is equal to one-half the product of its apothem by its perimeter. Proposition XIV. Theorem 292. The area of a circle is equal to one-half the product of its circumference by its radius. This is established by limits from the area of a regular polygon. In the... | |
 | Georgia. Department of Education - Education - 1919 - 648 pages
...their areas are to each other as the products of the sides including the equal angles. Demonstrate: The area of a circle is equal to one-half the product of its circumference by its radius. Ⅰ 且 ム Ⅰ 血 皿 耳 ' ⅠⅠA 皿 ATIOⅡqⅠ 日 8T1OⅠ も... | |
 | Georgia. Department of Education - Education - 1917 - 584 pages
...two similar triangles are to each other as the squares of any two homologous sides. 5. Demonstrate: The area of a circle is equal to one-half the product of its circumference by its radius. EXAMINATION QUESTIONS, AUGUST 4, 1916. Primary and General Elementary... | |
 | University of the South - 1906 - 204 pages
...adjacent sides. 5. Two similar triangles are to each other as the squares of their homologous sides. 6. The area of a circle is equal to one-half the product of its circumference and radius. AMERICAN HISTORY. 1. Describe the beginning of the colonization of Virginia.... | |
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The area of a circle is equal to one-half the product of its circumference and radius. 
