The length of a rectangular plot is twice its width. If the length of its diagonal is 9√5 metres, the perimeter of the rectangle is
A 27 m
B 54 m
C 81 m
D 80 m
The length of a rectangular plot is twice its width. If the length of its diagonal is 9√5 metres, the perimeter of the rectangle is
A 27 m
B 54 m
C 81 m
D 80 m