a cow is tied to a post by a rope 30 metre long if the cow moves along the circumference of a circle always keeping the Rope tied how far will it have gone when the Rope has raised an angle of 105 degree
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19
lenghth of the rope =radius of the sector
angle of the sector =105°
(105/360)×22/7×30×30 sqm is the area cow can be covered
Answered by
7
Since length of rope = radius of circle
an angle subtended is equal to 105 degree and we have to find the length of Arc so
105/360×2×22/7×30 = 55 m and
using class 10 formula l =theta/360 ×2pi r
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