Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 189
Ex. 667. If CA Is found to be 64 feet; DF, 16 feet; ED, 10 feet;what is the height of the tree? Ex. 668. To find the distance acrossa river from ^ to 5, a point C was locatedso that BC was perpendicular to AB atB, CD was then measured off 100 feetin length and perpendicular to BC at C.The line of… … BOOK III 179 Ex. 669. Two isosceles triangles are similar if the vertex angle of oneequals the vertex angle of tlie other, or if a base angle of one equals abase angle of the other. 424. It follows from the definition of similar polygons,§ 419, and from Prop. XIV that: (1) Homologous angles of…
Geometry, Plane · Geometry, Solid
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