Question

Question #9adaf

Answer 1

If circle, eqn. `: x^2+y^2=15.`

Explanation:

Area of circle `=pir^2=15pi rArr r^2=15`.

If an Ellipse, I am not sure that we can find its eqn.

Area of Ellipse `=piab=15pi rArr ab=15.`

To find `a and b` individually, one more cond. is required.

I hope this will be helpful! Enjoy!