Question

If b is mean proportion of a and c, then
(a - b)3 : (b - c)3 equals to-
(B) 62:2
(C) 2.2
(D) a?: 63
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Answer 1

Step-by-step explanation:

Equal chord of a circle are equidistant from the centre.

The perpendicular drawn from the centre of a circle, bisects the chord of the circle.