Exodus 26:8
The length of each curtain should be 45 feet
Exodus 26:2
                            The length of each curtain should be 42 feet,
Exodus 26:13
                            The half yard
Treasury of Scripture Knowledge
Summary
                            The length of one curtain shall be thirty cubits, and the breadth of one curtain four cubits: and the eleven curtains shall be all of one measure.                        
                    Length of one curtain
Bible References
Length of one curtain
                                        Exodus 26:2                                        
                                                            
                        The length of each curtain should be 42 feet, and the width of each curtain six feet; all the curtains are to have the same measurements.