Two arcs of the same length subtend angles of `60^@` and `75^@` at the centres of the circles.What is the ratio of the radii of the two circles?

Answer the following:In two arcs,of the same length of the wo circles subtend angles 65^@ and 110^@ at the centre, find the ratio of their radii

A chord PQ of circle with radius 15 cm subtends an angle of 60^@ with the centre of the circle. Find the area of the minor as well as the major segment. (pi =3.14, sqrt3 = 1.73)

Select and write the correct answer from the given alternatives in each of the following:An arc AB of a circle subtends an angle x radians at the centre O of the circle.Given that the area of the sector AOB is equal to the square of the length of the arc AB.then he value of x

The areas of two circles are in the ratio 9:4, then what is the ratio their circumference?

In the adjoining figure, Point O is the centre of the circle. Length of chord AB is equal to the radius of the circle. Find m(arc AB)

In the adjoining figure, Point O is the centre of the circle. Length of chord AB is equal to the radius of the circle. Find m(arc ACB)

Find the length of an arc of circle which subtends an angle of 108^@ at the centre, if the radius of the circle is 15cms.

Find the radians and degrees, the angle subtended at the centre by an arc whose length is 15cms, if the radius of the circle is 25cms.

The area of the circle is 25 pi sq. cm.Find the length of its arc subtending an angle of 144^@ at the centre. Also, find the area of the corresponding sector.