| Charles Hutton - Mathematics - 1812 - 620 pages
...measured by half the latter difference, is also measured by half the former. q. ED THBOUEM LX. The **Angle formed by Two Tangents, is Measured by Half the Difference of the** two Intercepted Arcs. LET EB, ED, be two tangents to a "circle at the points A, c ; then the angle... | |
| Charles Hutton - Mathematics - 1822 - 616 pages
...measured by half the latter difference, is also measured by half the former. E. o. THEOREM LX. The **Angle formed by Two Tangents, is measured by Half the Difference of the** two Intercepted Arcs. Let EB, ED, be two tangents to a circle at the points A, c ; then the angle E... | |
| Joseph Gwilt - Architects - 1842 - 1114 pages
...CFB. Where the angle A lias for its measure half the difference of the arcs GD, CFB. 926. PKOP. L. The **angle formed by two tangents is measured by half the difference of** th • two intercepted arcs. Let the angle CAB (ßg. 282.) be formed by the two tangents AC, AB ; this... | |
| George Roberts Perkins - Geometry - 1847 - 326 pages
...angle BFD is measured by half the difference of the arcs BD and AC. H PROPOSITION XV. THEOREM. The **angle formed by two tangents is measured by half the difference of the** two intercepted arcs. Let FB, FD be two tangents to a circle at the points A, C ; then will the angle... | |
| George Roberts Perkins - Geometry - 1850 - 332 pages
...the angle BFD-is measured by half the difference of the arcs BD and AC. PROPOSITION XIV. THEOREM. The **angle formed by two tangents is measured by half the difference of the** two intercepted arcs. Let FB, FD be two tangents to a circumference at the points A, C ; then will... | |
| Charles Davies - Geometry - 1850 - 218 pages
...measured by half the difference of the intercepted arcs DFB and CA. THEOREM XVIII. An angle formed ly **two tangents is measured by half the difference of the intercepted arcs.** Let CD and DA be two tangents to the circle at the points C and A : then will the angle CD A be measured... | |
| Gerardus Beekman Docharty - Geometry - 1867 - 474 pages
...is measured by half the latter difference, is also measured by half the former. QED THEOREM XX. The **angle formed by two tangents is measured by half the difference of the** two intercepted arcs. Let EB, ED, be two tangents to a circle at the points A, C ; then the angle E... | |
| Charles Davies - Geometry - 1870 - 398 pages
...equal angle E is also measured by half the difference of the intercepted arcs DFB and CA THEOREM XVIII. **An angle formed by two tangents is measured by half the difference, of the intercepted arcs.** Let CD and DA be two tangents to the circle at the points C and A : then will the angle CDA be measured... | |
| William Chauvenet, William Elwood Byerly - Geometry - 1887 - 331 pages
...arcs. For the angle A is equal to EDC minus ABD, by I., Proposition XXVI., Corollary. 54. COROLLARY. **An angle formed by two tangents is measured by half the difference of the intercepted arcs.** A EXERCISE. 1. Prove Proposition XVIII. and its Corollary by the aid of Proposition XI. 2. Theorem.—If,... | |
| William Chauvenet - Geometry - 1887 - 342 pages
...arcs. A For the angle A is equal to BDC minus ABD, by I., Proposition XXVI., Corollary. 54. COROLLARY. **An angle formed by two tangents is measured by half the difference of the intercepted arcs.** EXERCISE. 1. Prove Proposition XVIII. and its Corollary by the aid of Proposition XI. 2. Theorem. —... | |
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