a rectangular paperboard measuring 34 in long and 21 in wide has a semicircle cut out of it, as shown below. what is the perimeter of the paperboard that remains after the semicircle is removed? (use the value 3.14 for 7, and do not round your answer. be sure to include the correct unit in your answer.)

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.