In a circle with radius r, the length of a chord is r. Then the distance of a chord from the centre is.......
a) r/2
b) root two r/2
c) root three r/2
d) root three r
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Answer:
It is c) root3 r by 2
wardahd1234:
give me the solution please
Find the area of the triangle with the centre and the end points of the chord by area of equilateral triangle formula(root3 by 4× side^2) and then equate it to the area of the same triangle with formula being half×base×perpendicular height(construction) of the triangle. The you will find the perpendicular height in terms of r
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