In a circle of radius #'r'#, chords of lengths #a# and #b# cms, subtend angles #q# and #3q# respectively at the centre, then #r = asqrt(a/(2a-b))# cm. True or False?
1 Answer
Dec 13, 2017
The given relation is false
Explanation:
We know that perpendicular dropped from the centre of the circle to a chord bisects the chord and the angle subtended by the chord at the centre of the circle.
So here we have
If
By the problem
When
We get
Again when
We get
Dividing (2) by (1) we get
Hence the given relation is false