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

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 costheta is equal to 4/5 (b) 4/(25) (d) (16)/(25) (d) none of these

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

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 costheta is equal to 4/5 (b) 4/(25) (d) (16)/(25) (d) none of these

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 costheta 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.