| James Blaikie, William Thomson - 1891
...triangles shall be equal in every respect. 5. The angles at the base of an isosceles triangle are equal ; **and, if the equal sides be produced, the angles on the other side of the base shall** also be equal. Cor.— Every equilateral triangle is also equiangular. 6. If two angles of a triangle... | |
| Herbert Greenhough Smith, Sir George Newnes, George Newnes, Limited - 1901
...demonstrate, for example, that the angles at the base of an isosceles triangle are equal, and that **if the equal sides be produced the angles on the other side of the base** are equal also ; or that the square on the hypotenuse of a right-angled triangle is equal to the sum... | |
| Euclid - 1892 - 518 Seiten
...equal in all respects; i.4. so that XC is equal to YB. i;.E.II. PROPOSITION 5. THEOREM. The angles **at the base of an isosceles triangle are equal to one another; and if the equal sides be produced,** tk angles on the other side of the base shall also be equal to on another. Let ABC be an isosceles... | |
| James Sully - 1892 - 524 Seiten
...respect to discrete or numerical quantity, tg, 3 + 2 = 5. or to continuous quantity, eg, " The angles **at the base of an isosceles triangle are equal to one another."** Such equality is plainly likeness in respect of quantity or amount. It constitutes the type of perfect... | |
| James Sully - 1892 - 894 Seiten
...respect to discrete or numerical quantity, eg, 3 -f 2 = 5, or to continuous quantity, eg, " The angles **at the base of an isosceles triangle are equal to one another".** Such equality is plainly likeness in respect of quantity or amount. It constitutes the type of perfect... | |
| Queensland. Department of Public Instruction - 1897
...and 6 1. Define— Plane parallelogram. 2. The angles at the base of an isosceles triangle »re 21 **equal to one another ; and if the equal sides be produced, the angles on the other side of the base** sha, I also be equal to one another. 3. To bisect a given angle ; that is, to divide it into two 14... | |
| 1897
...GEOMETRY. The Board of Examiners. Any intelligible abbreviations are allowed. 1. Prove that the angles **at the base of an isosceles triangle are equal to one another.** Any point is taken on the straight line joining the vertices of two isosceles triangles on the same... | |
| Aristotle - 1897 - 379 Seiten
...proposition is arrived at in geometry. ' I am sure,' says a geometer to himself, ' that the angles **at the base of an isosceles triangle are equal to one another** ; but how am I to prove it? You can prove things equal to one another by showing that they are equal... | |
| Seymour Eaton - 1899 - 340 Seiten
...the angular point opposite that side is usually called the vertex. PROPOSITION 5. THEOREM The angles **at the base of an isosceles triangle are equal to...produced, the angles on the other side of the base shall** also be equal to one another. Let ABC be an isosceles triangle, having the side AB equal to the side... | |
| Henry Sinclair Hall, Frederick Haller Stevens - 1900 - 304 Seiten
...BCD equal to the angle ADC : prove that BD is equal to AC. II.SB B PROPOSITION 5. THEOREM. The angles **at the base of an isosceles triangle are equal to...produced, the angles on the other side of the base shall** also be equal to one another. A Let ABC be an isosceles triangle, in which the side AB is equal to... | |
| |