Question

What is concentric and auxiliary circle?

Answer 1

Concentric circle- A circle is said to be concentric if its centre is as same as that of other.

Auxuliary Circle- A circle centred at the centre of ellipse and radis equal to 'a'

Answer 2

Answer:

Mark as brainliest.

Step-by-step explanation:

A circle is said to be concentric if its centre is the same as that of another circle. Auxuliary Circle- A circle with radii equal to 'a' and centred at the ellipse's centre.