Find the length which at a distance of 5280
Asked by admin @ in Math viewed by 295 People
Find the length which at a distance of 5280m will subtend an angle of 1'at the eye.
Answered by admin @
Imagine you are at the centre of a circle of radius 5280 m.
The circumference is 2 x pi x 5280 = 33175 m.
There are 360°.
33175 ÷ 360 = 92.15 m
1' is 1/60 of a degree.
92.15 ÷ 60 = 1.54 m
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