6. Fill in the blanks :
a) A quadrilateral whose all the sides, diagonals and angles are equal is _____.
b) Diagonals of a rectangle ___________.
c) Diagonals of a rhombus ___________.
d) Both the diagonals of a rhombus are ______ in length.
e) The diagonals of a parallelogram __________
f) The diagonals of a square ___________.
g) The opposite sides and angles of a rectangle are _________.
h) The net of a triangular pyramid has _____ triangles