Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 455
444 SOLID GEOMETRY MENSURATION OF THE SPHERE Areas Proposition XXII. Theorem 966. If an isosceles triangle is revolved about a straightline lying in its plane and passing through its vertex butnot intersecting its surface, the area of the surf ace gener-ated by the base of the triangle is equal to…
Geometry, Plane · Geometry, Solid
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