| Euclides - Geometry - 1853 - 147 pages
...the angles bda, db a is double of the angle dab, wherefore an isosceles triangle abd is described, **having each of the angles at the base double of the third angle.** Which was to be done. PROPOSITION XI. — PBOBLEM. To inscribe an equilateral and eqwumgula/r pentagon... | |
| Royal Military Academy, Woolwich - Mathematics - 1853
...of the angles BDA, DBA is double of the angle DAB. Wherefore an isosceles triangle ABD is described, **having each of the angles at the base double of the third angle.** Which was to be done. PROPOSITION XI. PROB. To inscribe an equilateral and equiangular pentagon in... | |
| William Walton, Charles Frederick Mackenzie - Mathematics - 1854 - 225 pages
...the quadrilateral circles be described meeting again in JJ; P, R, Q will be in one straight line. 4. **Describe an isosceles triangle having each of the angles at the base double of the third angle.** Upon a given straight line, as base, describe an isosceles triangle having the third angle treble of... | |
| Cambridge univ, exam. papers - 1854
...the quadrilateral circles be described meeting again in R; P, R, Q will be in one straight line. 4. **Describe an isosceles triangle having each of the angles at the base double of the third angle.** Upon a given straight line, as base, describe an isosceles triangle having the third angle treble of... | |
| Popular educator - 1854
...exception of the fifth. This last I studied in the usual way, but without the assistance of a master. **To describe an isosceles triangle having each of the angles at the base double of the** vertical angle, almost baffled me. 1, however, after three months of hard study, succeeded in solving... | |
| William Somerville Orr - Science - 1854
...all, mid is л described about tic square ABCD. Which was to be done. PROPOSITION X.— PÍIOBLEM. **To describe an isosceles triangle having each of the angles at the base double of** tinthird angle. ' u "• Take any straight line AB, and divide it in B,so and with centre A and radius... | |
| Great Britain. Committee on Education - School buildings - 1855
...touches it. Section 4. } . About a circle to describe a triangular equiangular to a given triangle. 2. **To describe an isosceles triangle, having each of the angles at the base double of the third angle.** 3. To inscribe an equilateral and equiangular pentagon in a given circle. MECHANICS. (Three Hours allowed... | |
| Robert Potts - 1855
...parallelogram. Which of the regular polygons depend on this proposition for their construction ? 4. **Describe an isosceles triangle having each of the angles at the base double of the** angle of the vertex. 5. Triangles of the same altitude are as their bases. If D be the diameter of... | |
| Euclides - 1855
...angles BDA and DBA is double of the angle DAB. Wherefore an isosceles triangle ABD has been described, **having each of the angles at the base double of the third angle.** QEF The construction of this problem may be simplified by making a triangle ABD, hnving its three sides... | |
| 1855
...touches it. SECT. IV. — 1. About a circle to describe a triangle equiangular to a given triangle. 2. **To describe an isosceles triangle, having each of the angles at the** hase double of the third angle. 3. To inscribe an equilateral and equiangular pentagon in a given circle.... | |
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