ABCD is a square, so all four sides are equal and all four angles are 90&deg;.<br><br>&bull; Since AB = 6 cm, all sides = 6 cm.<br>&bull; BC = 6 cm<br>&bull; CD = 6 cm<br>&bull; AD = 6 cm<br>&bull; &ang;ABC = 90&deg;<br><br>Final Answer: BC = 6 cm, CD = 6 cm, AD = 6 cm, &ang;ABC = 90&deg;