A ring,10 cm in diameter, is suspended from a point 12cm above its centre by 6 equal strings attached to its circumference at equal intervals. Find the cosine of the angle between consecutive strings.

A ring,10cm in diameter,is suspended from a point 12cm above its centre by 6 equal strings attached to its circumference at equal intervals.Find the cosine of the angle between consecutive strings.

A circular ring of radius 5 cm is suspended horizontally from a point 12 cm vertically above its centre by 6 strings attached to its circumference at equal intervals. The cosine of the angle between two consecutive ring is

A circular ring of radius 3cm hangs horizontally form a point 4cm vertically above the centre by 4 strings attached at equal intervals to its circumference.If the angle between two consecutive strings be theta ,then cos theta is equal to (A) (4)/(5) (B) (4)/(25) (C) (16)/(25) (D) none of these

The circumference of a circle is 132 cm. Find the length of its diameter.

Find radius of a circle if its circumference is equal to the diameter of the circle.

A disc of mass 'm' is suspended at a point R/2 above its centre. Find its period of oscillation.

Find the angle theta whose cosine is equal to its tangent.

The circumference of a circle is 39.6 cm. Find its area.

The circumference of the base of a cylinder is 44 cm. Find its diameter.