A square is a rhombus in which ____.
A All angles are unequal
B Diagonals are not equal
C Sides are not equal
D One angle is a right angle
the answer told is B which would be correct only if framed as a rhombus is a square in which _____.for this answer should be D because to make a square from rhombus we need to have all diagonals 90 degree. if one is 90 all will be 90 as per the properties of a parallelogram.