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In the adjoining figure, AC is diameter of larger circle with centre O. AB is tangent to smaller circle with centre O. If OD = $r$, then BC is equal to :
- (a)$r$
- (b)$\frac{3r}{2}$
- (c)$2r$
- (d)$4r$
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(c) $2r$
In the adjoining figure, AC is diameter of larger circle with centre O. AB is tangent to smaller circle with centre O.…
CBSE Class 10 Maths PYQ · Circles · Concentric Circles · 1 Mark · March 2025 · Standard
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