 | George Clinton Whitlock - Mathematics - 1848 - 338 pages
...secant to the circle. Cor. 5. A Tangent, that is a line which touches a circle (177) without cutting it, is at right angles to the diameter drawn through the point of tangency, and the converse. Let TAT' be tangent to the circle at A ; then will TT' be perpendicular... | |
 | Alexander Stewart - 1864 - 684 pages
...— that is, does not go into it. In Diag. 1 (page 9), DK and PHQ are tangents. A tangent of a eirele is at right angles to the diameter drawn through the point of eontaet. There may he tangents to other eurve-lines as well as to eireles. The path or eourse in whieh... | |
 | Alexander Stewart - 1869 - 530 pages
...that is, does not go into it. In Diag. 1 (page 9), I) K and PHQ are tangents. A tangent of a circle is at right angles to the diameter drawn through the point of contact. There may be tangents to other curve-lines as well as to circles. The path or course in which a heavenly... | |
 | Hugo Reid - 1874 - 276 pages
...not cut it, that is, does not go into it. In Fig. 8, DK and PHQ are tangents. (A tangent of a circle is at right angles to the diameter drawn through the point of contact. — There may bo tangents to other curve lines as well as to circles.) 391. The path or course in which... | |
| |
K and PHQ are tangents. A tangent of a circle is at right angles to the diameter drawn through the point of contact. There may be tangents to other curve-lines as well as to circles. 