Alana is cooking a turkey. It takes 4 1/2 h to cook. She checks it every 20 min, or 1/3 h. How many times will she check it before it is cooked?​

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.