1.
Tangents from an external point to a circle are
2.
The tangents drawn at the extremities of the diameter of a circle are
3.
Number of tangents drawn at a point of the , circle is/are
4.
5.
A tangent is drawn from a point at a distance of 17 cm of circle C(0, r) of radius 8 cm. The length of its tangent is
6.
The length of tangents drawn from an external point to the circle
7.
The distance between two parallel tangents of acircle of radius 4 cm is
8.
9.
10.
If a line intersects two concentric circles with centre O at A, B, C and D, then: