Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 343
plane, thereexists one and only one plane perpendicular to the given plane. Ex. 1216. Apply the truth of Prop. XXIV: (a) to the planes thatintersect at the corner of a room ; (6) to the planes formed by an openbook placed perpendicular to the top of the desk. Ex. 1217. If a plane is perpendicular… … Given AB and CD, any two str. lines in space.To construct a line JL both to AB and to CD, I. Construction 1. Through CD construct plane MN II AB, § 647. 2. Through AB construct plane AF ± plane MN intersectingMN in EF, and CD in H. § 682. 3. Through H construct HK, in plane AF, 1. EF. § 148. 4. HK…
Geometry, Plane · Geometry, Solid
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