Find the length which at a distance of 5280 m will subtend an angle of 1' at the eye.

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.

While oscillating a distance of 88 cm,a pendulum subtends an angle of 60^@ at the centre.Find the length of the pendulum.

Assuming that a person of normal sight can read print at such a distance that the letters subtend an angle of 5' at his eye. Find what is the height of the letters that he can read at a distance of 756 meteres ?

Find the length of the normal chord which subtends an angle of 90^@ at the vertex of the parabola y^2=4x .

Find the length of the normal chord which subtends an angle of 90^(@) at the vertex of the parabola y^(2)=4x

Find the length of the chord which substends an angle of 120^(@) at the centre 'O' and which is at a distance of 5 m from the centre.

Find the length of the arc of a circle of diameter 42 cm which subtends an angle of 60^(@) at the centre.

Find the length of the chord which subtends an angle of 120^(@) at the centre of the circle of radius 6 cm.

Find the length of the chord which subtends an angle of 120^(@) at the centre of the circle of radius 6 cm.

Find the length of the chord which subtends an angle of 120^(@) at the centre of the circle of radius 6 cm.