Two line segments of equal length are congruent irrespective of the angles at which they are inclined.
So, CD = 4 cm
A line, AB of 4 cm is drawn. Another line, CD which is congruent and perpendicular to AB is drawn. Length of CD is
Line AB of 4 cm is drawn. Another line CD which is congruent and perpendicular to AB is drawn. Length of CD is