EFGH is a square, so all four sides are equal and all four angles are 90&deg;.<br><br>&bull; Since EH = 3 m, all sides = 3 m.<br>&bull; EF = 3 m<br>&bull; FG = 3 m<br>&bull; GH = 3 m<br>&bull; &ang;EFG = 90&deg;<br><br>Final Answer: EF = 3 m, FG = 3 m, GH = 3 m, &ang;EFG = 90&deg;