You know our secret, you must be killed.
6.4
Perimeter of a square is given by 4a where 'a' is the side of square. Just put 64 equals to 4a which gives a=16
50-64cm
64cm 1.4m = 140cm 140cm - 76cm = 64cm
64/7=9.142857142857143
64 cm
by transitive property
64cm.
A.
2a. (a, b and c are all equal.)
a= (+a) or a= (-) b= 2a b= 2a c= (-a) c= (+a)
c