" 13.All concentric circles are "longrightarrow" to each other."

All concentric circles are..... to each other.

All concentric circles are..... to each other.

All concentric circles are..... to each other.

Concentric Circles & Congruent Circles

Prove that the tangent and the radius through the point of contact of a circle are perpendicular to each other.

In two concentric circles prove that all chords of the outer circle which touch the inner circle are of equal length.

In two concentric circles prove that all chords of the outer circle which touch the inner circle are of equal length.