Answer: 3 units
Step-by-step explanation:
Using distance formula :
\(\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)
The diameter of the circle with endpoints R(-2, 2) and S(4, 2) will be
\(d=\sqrt{(4+2)^2+(2-2)^2}=\sqrt{36}=6\ units\)
Since, the radius of a circle is half of the diameter.
Then the radius of the circle will be
\(r=\dfrac{d}{2}=\dfrac{6}{2}=3\ units\)
Hence, the radius of the circle = 3 units.
