Elements of geometry, containing books I and II with exercises and notes (1882)
Smith, J. Hamblin (James Hamblin), 1829-1901 · Toronto : Gage · leaf 66
ning two of the opposite angular points. B0012 I.] EXERCISES ox DEFIXITIOXS 21-?,Z. 55 XXXIII. The Altitude of a Parallelogram is the perpen-dicular distance of one of its sides from the side opposite,regarded as the Ease. The altitude of a triangle is the perpendicular distance ofone of its… … If a perpendicular be let fall from B to DC produced, meet-ing DC in F, BF is the altitude of the parallelogram. Exercises.Prove the following theorems : 1. The diagonals of a square make with each of the sidesan angle equal to half a right angle. 2. If two straight lines bisect each other, the…
Geometry
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