Answered

All rhombuses are squares.
a. False
b. True; a rhombus has four congruent sides.
c. True
d. False; all rhombuses do not have four 90° angles.

Sagot :

Dominiviz
D.False;all rhombuses do not have four 90° angles...

Why....

According to the rules of quadrilaterals,all rhombuses are not considered as a square but all squares are considered as a rhombus...

Hope it Helps:)
-----Domini---- 
Zilmerviz
The answer is D. False; all rhombuses do not have four 90° angles.
 
all rhombuses do not have four 90° angles because it may 89° below or 180° above


a rhombus is a quadrilateral in which all of the sides are of equal length, i.e., it is an equilateral quadrangle. If any angle of an equilateral quadrangle is a right angle, then all its angles are right angles and it is also a square.