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4. Measurement of Angles
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Q12 of 28 Page 4

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

Given radius = 5280 m


We know that


And know that




= 1.5365 m


More from this chapter

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10

The number of sides of two regular polygons is 5:4 and the difference between their angle is 90. Find the number of sides of the polygons.

11

A railroad curve is to be laid out on a circle. What radius should be used if the track is to change direction by 250 at a distance of 40 meters?

13

A wheel makes 360 revolutions per minute. Through how many radians does it turn in 1 second?

14

Find the angle in radians through which a pendulum swings if its length is 75 cm and the tip describes an arc of length (i) 10 cm (ii) 15 cm (iii) 21 cm.

Questions · 28
4. Measurement of Angles
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