In a circle of diameter 40 cm, the length of a cord is 20 cm. Find the length of minor arc of the cord.

In the figure AB = PQ, PR = 2 cm Find the length of QR.

The diameter of circle is 30 cm. What is the length of a chord 9cm away from the center?

Corners of a square are. on a circle. If the length of one side of square is 10 cm, find the perimeter of the circle.

In the figure AB = PQ, PR = 2 cm Find the length of PQ, AB

If the length of a chord of a circle of diameter 40 cm is 20 cm , what is the angle subtended by the chord at the centre of the circle ?

In a circle a chord of length 42 cm is 20 cm away from the centre. Find the length of chord which is 21 cm away from the centre.

In a circle of radius 25 centimetres, the lengths of two parallel chord's are 30cm and 40 cm. If the chords are on the same side of the diameter, what is the distance between? If the chords are on either of the diameter, what is the distance between them?

The length' of an arc of a circle is 4 cm . What is the length of an arc of the same central angle in a circle of double the radius?

If the angle subtended at the centre of a circle of diameter 50 cm by an arc of length 11 cm is theta radians.Find the angle subtended above in degree (use pi=22/7)

In the given figure radius of the circle is 2 units. Find the length of arc APB .