If i draw 3 line segments from the center pointof a circle to each corner of the triangle to form 3 congruent triangle how is the radius of the circle r related to the 3 triangles

The radius are the same.

Explanation:

Any two circles with the same radius are congruent

line segments from the center point of a circle to each corner of the triangle are radius

if one circle is moved so that its centre coincides with the centre of the other circle, then it follows from the definition that the two circles will coincide.

answer; the correct answer to the above statement is (true);