| John Playfair - Euclid's Elements - 1837 - 332 pages
...than CA, and BC, CA greater than AB. SCHOLIUM. 23 E PROP. XXI. THEOR. If from, the ends of one si'le **of a triangle, there be drawn two straight lines to a point within the triangle, these** two lines shall be less than the other two sides of the triangle, but shall contain a greater angle.... | |
| Robert Simson - Geometry - 1838 - 434 pages
...CA, and BC, CA greater than AB. Therefore any two sides, &c. Q,. ED PROP. XXI. THEOR. IF, from the **ends of the side of a triangle, there be drawn two...a greater angle. * Let the two straight lines BD,** CD be drawn from B, C, the ends of the side BC of the triangle ABC, to the point D within it ; BD and... | |
| Euclides - 1838 - 264 pages
...third Mr.." and reason as follows: " For, since BA and AC are together PROP. XXI. THEOR. If from the **ends of the side of a triangle there be drawn two...to a point within the triangle, these shall be less** man the other two sides of the triangle, but shall contain a greater angle. Let ABC be a triangle,... | |
| Euclides - Geometry - 1841 - 378 pages
...than CA, and BC, CA greater than AB. Therefore any two sides, &c. UED PROP. XXI. THEOR. If from the **ends of the side of a triangle, there be drawn two...be less than the other two sides of the triangle,** out shall contain a greater angle. Let ABC be a triangle, and from the points B, C, the ends of the... | |
| Euclides - 1842 - 320 pages
...than CA, and вc, CA greater than AB. Therefore any two sides, &c. QED PROP. XXI. THEOR. IF from the **ends of the side of a triangle there be drawn two...within the triangle, these shall be less than the** two other sides of the triangle, but shall contain a greater angle. Let the two straight lines BD,... | |
| John Playfair - Euclid's Elements - 1842 - 332 pages
...from B to C ; therefore BC is less than BA+AC or BA+AC>BC. PROP. XXI. THEOR. If from the ends of one **side of a triangle, there be drawn two straight lines to a point within the triangle, these** two lines shall be less than the other two sides of the triangle, but shall contain a greater angle.... | |
| Education - 1844 - 688 pages
...produced, the angles upon the other side of the base shall be equal. 3. If from the ends of the sides **of a triangle there be drawn two straight lines to...of the triangle but shall contain a greater angle.** 4. The straight lines which join the extremities of two equal and parallel straight lines are themselves... | |
| Euclid - Geometry - 1845 - 218 pages
...and BC, CA greater than AB. Therefore any two sides, &c. QED PROPOSITION XXI. THEOB. — If from the **ends of the side of a triangle, there be drawn two...contain a greater angle. Let the two straight lines BD.** CD be drawn from B, C, the ends of the side BC of the triangle ABC, to the point D within it ; BD and... | |
| Great Britain. Council on Education - 1845 - 696 pages
...one another. 58."The greater side of every triangle is opposite to the greater angle. 59. If from the **ends of the side of a triangle there be drawn two...of the triangle, but shall contain a greater angle.** 60.*If the square described upon one of the sides of a trinngle be equal to the sum of the squares... | |
| Euclides - 1845 - 546 pages
...are greater than AB. Therefore any two sides, &c. QED PROPOSITION XXI. THEOREM. If from the ends of a **side of a triangle, there be drawn two straight lines...the triangle, but shall contain a greater angle. Let** ABC be a triangle, and from the points B, C, the ends of the side BC, let the two straight lines BD,... | |
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