Number of tangents a circle have
1
0
4
Infinite
A tangent PT at a point T of a circle of a radius 8cm meets a line through the centre O at a point P so that OP = 17 cm. Then, the length of PT is
12 cm
8.5 cm
15 cm
10 cm
CP and CQ are tangents to a circle with centre O. ARB is another tangent touching the circle at R. If CP = 11 cm, and BC = 7 cm, then the length of BR is
6 cm
5 cm
4 cm
8 cm
The length of the diagonal of a rectangle is 10 cm. The area of its circumscribed circle is
10π cm2
25π cm2
100π cm2
50π cm2
Two circles touch externally at a point P. From a point T on a common tangent PT, tangent segments TA and TB are drawn to the two circles. Then TA =
TB
PB
OB
2TB
________ is a line segment joining any two points on a circle.
Tangent
Chord
Radius
Diameter
10 πcm2
25πcm2
100πcm2
50πcm2
The tangent at any point of a circle is perpendicular to the _________ through the point of contact.
Secant
None of these
In two concentric circles, a chord of the larger circle touches the smaller circle. If the length of this chord is 8 cm and diameter of the smaller circle is 6cm, then find the diameter of the larger circle.
3 cm
Determine the length of a tangent to a circle with radius 5cm, drawn from a point at distance 13cm from the centre of the circle.
13cm
14cm
15cm