| Charles Godfrey, Arthur Warry Siddons - Geometry - 1903 - 384 pages
...together less than two right angles. COR. 4. Every triangle has at least two of its angles acute. COR. 5. **If two triangles have two angles of the one equal to two angles of the other, each to each,** then the third angles are also equal. COR. 6. The sum of the angles of a quadrilateral is equal to... | |
| Education - 1903 - 692 pages
...each to each, and also the angles contained by 'hole sides equal, the triangles are congruent. Utwo **triangles have two angles of the one equal to two angles of the other, each to each, and** also one side of the one equal to '••« corresponding side of the other, the triangles are congruent.... | |
| Euclid - Euclid's Elements - 1904 - 488 pages
...to two right angles. I. 13. From this Proposition we draw the following important inferences. 1 . // **two triangles have two angles of the one equal to two angles of the other, each to each,** then the third angle of the one is equal to the third angle of the other. 2. In any right-angled triangle... | |
| George Albert Wentworth - Geometry - 1904 - 496 pages
...a triangle is taken from two right angles, the remainder is equal to the third angle. 132. COR. 3.. **If two triangles have two angles of the one equal to two angles of the other,** the third angles are equal. "<rwab* •**• <'• Vj 82 TRIANGLES. S3 133. COR. 4. If two right triangles... | |
| Wilbur Fisk Nichols - 1905 - 208 pages
...acute angles of a right triangle are angles. 6. Each angle of an equilateral triangle must be . 7. **If two triangles have two angles of the one equal to two angles of the other,** the third angles are . 8. If two right triangles have one acute angle of one equal to an acute angle... | |
| Education - 1907 - 880 pages
...this topic be selected as basic principles the following theorems: "Two triangles are similar If they **have two angles of the one equal to two angles of the other;** Two triangles are similar if they have nn angle of the one equal to an angle of the other and the including... | |
| Education - 1879 - 928 pages
...topic lie selected as basic principles the following theorems : "Two triangles are similar if they **have two angles of the one equal to two angles of the other;** Two triangles are similar If they have an angle of the one equal to an angle of the other and the including... | |
| Isaac Newton Failor - Geometry - 1906 - 431 pages
...obtuse angle. 155 COROLLARY 2. The acute angles of a right triangle are complementary. 156 COROLLARY 3. **If two triangles have two angles of the one equal to 'two angles of the other,** the third angles are equal. 157 COROLLARY 4. Each angle of an equilateral triangle is 60°. PROPOSITION... | |
| Edward Rutledge Robbins - Geometry, Plane - 1906 - 268 pages
...an acute angle of the other, the remaining acute angles are equal. (See 114 and 48.) 117. THEOREM. **If two triangles have two angles of the one equal to two angles of the other,** the third angle of the first is equal to the third angle of the second. (See 110 and Ax. 2.) 118. THEOREM.... | |
| University of Sydney - 1906 - 738 pages
...HALF. PAPER A. — (Eucm>.) 1. Any two sides of a triangle are together greater than the third. 2. **If two triangles have two angles of the one equal to two angles of the other** respectively and one side equal, etc. Complete this enunciation and prove the theorem. If the diagonal... | |
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