Plane geometry, with problems and applications (1910)
Slaught, H. E. (Herbert Ellsworth), 1861-1937, Lennes, N. J. (Nels Johann), 1874- joint author · Boston, Allyn and Bacon · leaf 259
half the square ABCD ? 8. Find a side of a regular octagon of radius r. See Ex. 3, p. 146. 9. Find the area of a regular octagon of radius r. 10. In the figure ABCD-- is a regular C,^ -,g octagon inscribed ina circle of radius r.Find the area of thetriangle ABC. Suggestion. Findfirst the altitude… … J-—- BEVIEW AND FUBTHEB APPLICATIONS^ 247 12. Iq the parquet floor design given with Ex. 10, the darker partsare parallelograms constructed as under Ex. 11. What part of thearea is of white wood ? 13. In the figure ABCD and ABCD are equal squares, placed asshown. Lines are drawn through A, B, C,…
Geometry, Plane
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