Question

If two circles having centres P and Q are congruent, then what can you say about their radii ?

Answer 1

Hey there!

We know that ,

Congruent figures are said to congruent if and only they have same size and same shape.

All circles have same shape.

A circle is formed by joining the set of points which are equidistant from a point.

So, Now The Size is decided by the distance of the set of points from a given point.

Call the fixed point as Centre of the circle from now.

Now, The distance between the centre of circle to the set of fixed points is known as radius.

So , If circles are congruent then their radii are equal

Therefore, Congruent Circles with centres P & Q, have Same radii .