24. One leg of a right triangle is 5 inches. The hypotenuse is 9 inches. Find the length of the second leg.

25. Indicate what number should be added so that the result is a perfect square trinomial:
x? + 16x +

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.