230k views
5 votes
The equation of a circle is (x-20)^2 + (y-.05)^2=81. what is the radius

User Arhnee
by
3.6k points

1 Answer

4 votes

Answer:

The radius is 9 units.

Explanation:

As the equation for circle is (x-a)² + (y-b)² = r² where r reoresents the radius of circle :

r² = 81

r = √81

= 9 units

User Giancarlos
by
3.4k points