| British Columbia. Superintendent of Education - 1897 - 710 σελίδες
...other sides of the triangle, but will contain a greater angle. 4. (a.) Equal triangles on the same base and on the same side of it are between the same parallels. (b.) All the exterior angles of any rectilineal figure are together equal to four right angles. 5.... | |
| Euclid - 1845 - 336 σελίδες
...is a quadrilateral in which AB = At> and BC<:CD ; show that 3. ABC and DBC are isosceles triangles on the same base BC and on the same side of it ; prove that L. ABD= L. ACD. 4. The base BC of an isosceles triangle ABC is produced to D ; show that... | |
| 352 σελίδες
...prove that PQR is equilateraL tEx. 389 ABC is an equilateral triangle ; DBC is an isosceles triangle on the same base BC and on the same side of it, and / BDC--^ / BAC. Prove that AD = BC. tEx. 8BO. How many sides has the polygon, the sum of whose... | |
| James McMahon - 2018 - 244 σελίδες
...line joining their vertices bisects the base at right angles. tEx. 841. Two triangles ABC, DCB stand on the same base BC and on the same side of it; prove that AD is parallel to BC if AB = DC and AC = DB. tEx. 842. In the diagonal AC of a parallelogram... | |
| 102 σελίδες
...prove that PQR is equilateral. tEx. 389. ABC is an equilateral triangle; DBC is an isosceles triangle on the same base BC and on the same side of it, and L BDC = ^/ BAC. Prove that AD = BC. tEx. 39O. How many sides has the polygon, the sum of whose... | |
| V Krishnamurthy, C R Pranesachar - 2007 - 708 σελίδες
...ABCD, AC bisects angles A and C, show that AC is perpendicular to BD. 10. ABC and DBC are two triangles on the same base BC and on the same side of it such that BA = CD and BD = CA. If AC and BD meet at O, prove that AOBA is congruent to A0CD. 1 1. Deduce... | |
| Thomas Tate (Mathematical Master, Training College, Battersea.) - 1860 - 404 σελίδες
...(iv) BC=DE, (v) BC=DE, AC=DF, AC=DE, AC=DF, Lk = Lf, ^A=^ E, tEx. 51. Two triangles ABC, DCB stand on the same base BC and on the same side of it; prove that AD is parallel to BC if AB = DC and AC= DB. SUMMARY OF RESULTS If two triangles have two... | |
| Education Department - 1879 - 1136 σελίδες
...will form another equilateral triangle. 6. Equal triangles on equal bases in the same straight line and on the same side of it are between the same parallels. Show that the figure formed by joining the middle points of the sides of a quadrilateral is half of... | |
| 1877 - 470 σελίδες
...be produced to D, the angle CBD is greater than the angle CAB. 3. Equal triangles on the same base and on the same side of it are between the same parallels. 4. The square described on the side subtending the right angle of a right-angled triangle is equal... | |
| 464 σελίδες
...prove that PQR is equilateral. tEx. 389 ABC is an equilateral triangle; DBC is an isosceles triangle on the same base BC and on the same side of it, and / UDC ;, z BAG. Prove that AD = BC. tEx. 39O. How many sides has the polygon, the sum of whose... | |
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