Two consecutive angles in a parallelogram are in the ratio 5:4. Find the measure of an obtuse angle of the parallelogram.

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

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.

Which expression is a perfect cube? a. x8 b. y24 c. m28 d. x64