There are two squares: ABCD and CEFG. They share vertex C.<br><br>&bull; CE is a side of square CEFG. From the figure, CE = 8 cm.<br>&bull; BE runs from B (a vertex of ABCD) through C to E (a vertex of CEFG).<br>&emsp; BE = BC + CE. From the figure, BC = 5 cm and CE = 8 cm.<br>&emsp; So BE = 5 + 8 = 13 cm.<br><br>Final Answer: CE = 8 cm, BE = 13 cm