Read the statement shown below.

“All squares are parallelograms.”

Which of the following is a sufficient condition for the above statement to be true?

A square has equal diagonals.

A square has four right angles.

A square has diagonals which intersect at right angles.

A square has its opposite sides parallel

Question

Read the statement shown below. 
  
“All squares are parallelograms.” 

Which of the following is a sufficient condition for the above statement to be true?
 
A square has equal diagonals. 

A square has four right angles. 

A square has diagonals which intersect at right angles. 

A square has its opposite sides parallel

anonymous · Answer

Pretend like you don't know if squares are parallelograms.
What must be true for a shape to be a parallelogram? The opposite sides have to be parrallel. So the last choice is the answer. The other 3 things don't have to be true for a shape to be a parallelogram.

anonymous · Answer

thank u

mathstudent55 · Answer

Yes, @BangkokGarrett is correct. It's D.

anonymous · Answer

ok