Always
Sometimes
Never
2007-06-28 03:32:43 · 6 answers · asked by zerokun4 1 in Science & Mathematics ➔ Mathematics
sometimes....rectangles are the only parallelograms that have all four congruent angles (90 degrees).
2007-06-28 03:36:11 · answer #1 · answered by Anonymous · 2⤊ 0⤋
sometimes.
if the parallelogram is a rectangle or square, then all angles are congruent (90 degree angles)
2007-06-28 10:36:18 · answer #2 · answered by Anonymous · 3⤊ 0⤋
sometimes. if its a rectangle or square than it has 4 congruent angles
2007-06-28 10:37:47 · answer #3 · answered by sam w 3 · 1⤊ 0⤋
Sometimes - if it has four congruent angles, it's a rectangle.
2007-06-28 10:35:53 · answer #4 · answered by PeteM 1 · 2⤊ 2⤋
Sometimes.
If it does, it's also a rectangle,
2007-06-28 10:36:16 · answer #5 · answered by TychaBrahe 7 · 3⤊ 0⤋
sometimes
2007-06-28 10:35:49 · answer #6 · answered by Grits 2 · 3⤊ 0⤋