1.
In the given figure, O is the centre of a circle, PQ is a chord and the tangent PT at P makes an angle of 50° with PQ. Then ∠POQ= ?
2.
A circle touches all the four sides of a quadrilateral ABCD, with AB = 7 cm BC = 8 cm and CD = 5 cm. The length of AD is:
3.
The length of a tangent from a point A at 25cm from the centre of a circle is 24 cm. The radius of the circle is:
4.
In the given figure below that the value of ∠QSR is
5.
Two concentric circles are of radius 5 cm and 3 cm. Find the length of the chord of the larger circle which touches the smaller circle.
7.
If the angle between two radii of a circle is 130, then the angle between the tangents at the end of the radii is:
8.
PQ is chord of length 8 cm of a circle of radius 5 cm. The tangents at P and Q intersect at a point T. The length of TP is:
9.
The value of x in given figure is
10.
In the given figure PT is a tangent. If PT =12 cm PB = 8 cm , then the length of chord AB is
