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Oh, isn't that a lovely question! In a parallelogram, the opposite angles are equal, but they don't have to be 90 degrees. Parallelograms can have equal angles, but they are not always right angles. Just like in nature, shapes come in all different angles and sizes, each one unique and beautiful in its own way.
Not normally because a parallelogram usually has two equal opposite obtuse angles and two equal opposite acute angles that all add up to 360 degrees.
No. Either it has none, or - if it is a rectangle - it has 4 of them.
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Can a parallelogram have 4 acute angles?
No, because it is a quadrilateral and all the angles have to add up to 360 degrees and the less possible degree and angle could have would be 90 so, parallelograms can only have 2 acute and 2 obtuse angles.
What has 2 acute angles and 2 obtuse angles?
parallelogram
Does a trapezoid have 90 degree right angle?
Not normally but it can have 2 right angles
What shape has 2 acute angles and 2 obtuse angles?
parallelogram
Is it possible to have a right isosceles triangle?
Yes, because 90+90=180, so if you have a 90 degree angle then divide 90 by 2 that is 45. So you would have one 90 degree angle, and two 45 degree angles.
What is the difference between a parallelogram and a rectangle?
A parallelogram has 2 equal obtuse angles and 2 equal acute angles whereas a rectangle has 4 equal 90 degree angles
What figure has 2 pairs of pararallel lines and no 90 degree angles?
A non-rectangular parallelogram.
Why is a rectangle a parallelogram but a parallelogram is not a rectangle?
A rectangle has three rules: -2 pairs of parallel sides -four 90 degree angles -2 pairs of congruent sides A parallelogram has three rules: -2 pairs of parallel sides - 2 pairs of congruent angles -2 pairs of congruent sides The only difference is that a rectangle has 90 degree angles, which a parallelogram doesn't have. That's why a parallelogram can't be a rectangle. A rectangle follows all the rules of being a parallelogram, so it can be a parallelogram.
Which quadrilaterals have opposite angles congruent?
A square and a rectangle have opposite equal 90 degree angles. A parallelogram and a rhombus have 2 opposite equal acute angles and 2 opposite equal obtuse angles.
Can a parallelogram have 2 45 degree angles and 2 75 degree angles?
No it cannot, because the interior angles of a parallelogram ... or of anyfour-sided figure for that matter ... must add up to 360 degrees.
How are a rectangle and a parallelogram different?
The main difference is that a rectangle has 4 equal interior right angles whereas a parallelogram has 2 equal interior obtuse angles and 2 equal interior acute anglesBoth have two sets of parallel lines, but a rectangle forms four equal 90 degree angles. A parallelogram does not have four equal angles.
How does a rectangle differ from a parallelogram?
A rectangle has 4 equal interior angles of 90 degrees whereas a parallelogram has 2 equal acute angles and 2 equal obtuse angles.
Are all angles of a parallelogram equal to 90 degrees?
No, only in a square (regular parallelogram).The opposite angles are EQUAL in a parallelogram, and the adjacent angles are SUPPLEMENTARY(they equal 180 degrees).So if any angle in a parallelogram is a right angle, they all are. Otherwise, there are no right angles.The angles of a parallelogram will average 90 degrees, as there are 360 degrees in any quadrilateral, (360/4 - 90) and 180 degrees in two adjacent non-equal angles (180/2 = 90).
Can a parallelogram have 4 acute angles?
No, because it is a quadrilateral and all the angles have to add up to 360 degrees and the less possible degree and angle could have would be 90 so, parallelograms can only have 2 acute and 2 obtuse angles.
What supplementary angles have equal degree measure?
2 90 degree (right) angles
Does a parelleogram have any symmetrical sides?
Yes, a parallelogram has 2 pairs of symmetrical sides. A rectangle is an example of a parallelogram but with all of its angles being 90 degrees whereas in a typical parallelogram none of the angles are 90 degrees. Opposite sides will be of equal lengths.
Does a quadrangle have 90 degree angels?
No, but it can have 1, 2 or 4 ninety degree angles.
