The diagram below shows a sign that Jack designed. It is made of two circles that share the same center. Jack wants to use string to create a border around the outermost edge of the sign.

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.