Question

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

Answer 1

the answer is 3

Explanation:

Answer 2

Answer: 3 units

Explanation:

Using distance formula :

`√((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=√((4+2)^2+(2-2)^2)=√(36)=6\ units`

Since, the radius of a circle is half of the diameter.

Then the radius of the circle will be

`r=(d)/(2)=(6)/(2)=3\ units`

Hence, the radius of the circle = 3 units.