Books Books PBOR. —To describe an isosceles triangle, having each of the angles at the base, double of the third angle. Take any straight... The Elements of Euclid; viz. the first six books, together with the eleventh ... - Page 89
by Euclides - 1834 ## The first six books of the Elements of Euclid, with numerous exercises

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... ## The geometry, by T. S. Davies. Conic sections, by Stephen Fenwick

...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... ## Solutions of the Problems and Riders Proposed in the Senate-house ...

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... ## Solutions of the problems and riders proposed in the Senate-house ...

...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... ## The popular educator, Volumes 5-6; Volume 8

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... ## Orr's Circle of the Sciences: The mathematical sciences

...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... ## Minutes of the Committee of Council on Education

...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... ## Liber Cantabrigiensis, an account of the aids afforded to poor students, the ...

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... ## The Elements of geometry; or, The first six books, with the eleventh and ...

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... 