Fill in the gaps.
Square has ______ diagonals.

Fill in the gaps: 2a xx 3b = square

Fill in the gaps (indicated by______) in each of the following G.P.'s. -1, __ , __ , __, -16….

Fill in the gaps (indicated by_______) in each of the following G.P.'s. 0.1, __, __, __, __, 0.000032,….

Fill in the gaps (indicated by_______) in each of the following G.P.'s. (11)/(4), ___ , ___, (22)/(27),…

Fill in the gaps. The diagonals of parallelogram _______ each other.

Fill in the gaps: 6ab div 2a = square

Fill in the gaps: 6ab div 3ab= square

Fill in the gaps. Oblique sides of isosceles trapezium are ______.

Fill up the gaps (indicated by ______) in each of the following A.P.'s. _,_, 19, _,_, 31.