[" Q 8.Find the length which at a distance of "5280m" will subtend an "],[" angle of "1'" at the eye."]

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

Find the length of the chord of a circle of radius 8 cm which subtends a right angle at the centre.

Find the length of an arc of a circle of radius 10 cm which subtends an angle of 45^(@) at the center

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

What is the length of the chord of a unit circle which subtends an angle at the centre ?

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 ?

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

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