Question

This circle is centered at the origin, and the length of its radius is 5. What is the equation of the circle?

Answer 1

Given :-

• Circle's centre is at origin.
• The radius is 5 u .

To Find :-

• The equation of the circle .

Answer :-

As we know that the general equation of circle centred at origin is ,

• x² + y² = r²

where r is the radius .Here r =5 , So ,

• x² + y² = 5²
• x² + y² = 25