The diameter of a circle has endpoints whose coordinates are R(-2, 2) and S(4, 2). What is the radius of the circle?

1 Answer
May 28, 2017

the radius of the circle will be=3units

Explanation:

We can easily find out the center of the cirlce

  • The coordinates will be:-
    =((-2+4)/2,(2+2)/2)
    =(2/2,4/2)
    =(1,2)
    after getting the center we have to find the distance from any one point
    we get that
    sqrt((4^2-1^2)+(2^2-2^2)
    sqrt(3^2=3
    so essentially the ans is 3units