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Any parallelogram that is not a rectangle or a square must have two obtuse angles (and two acute ones).

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Q: What is a parallelogram that has at least one obtuse angle?

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parallelogram with one diagonal

No. A triangle equals 180o. An obtuse angle is anything above 90o. If you were to have two obtuse triangles, then one word for it, if you have one more angle, would be a square or parallelogram.

-- No right triangle, acute triangle, or equilateral triangle has an obtuse angle in it. -- If a triangle has an obtuse angle in it, then it's called an obtuse triangle. -- No triangle can have more than one obtuse angle in it .

square

No. A triangle can have only one obtuse angle. A triangle must have at least two acute angles

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parallelogram with one diagonal

obtuse triange

No. A triangle equals 180o. An obtuse angle is anything above 90o. If you were to have two obtuse triangles, then one word for it, if you have one more angle, would be a square or parallelogram.

no only 2acute angle n 2 obtuse angle A right angle would make it a rectangle - still a parallelogram but a special one with a specific name.

-- No right triangle, acute triangle, or equilateral triangle has an obtuse angle in it. -- If a triangle has an obtuse angle in it, then it's called an obtuse triangle. -- No triangle can have more than one obtuse angle in it .

Trapezoids ALWAYS have at least one obtuse angle (if they have two right angles, then there will only be one obtuse angle), usually two (in any other circumstance, they will have two obtuse and two acute angles).

-- If a triangle has an obtuse angle in it, then it's called an obtuse triangle. -- No triangle can have more than one obtuse angle in it . -- Right triangles, acute triangles, and equilateral triangles don't have any obtuse angles in them.

square

Yes, because the angles have to add up to 360º, at least one angle has to be obtuse.

An obtuse triangle has 1 obtuse angle and 2 different acute angles and they all add up to 180 degrees

It needs at least 1 obtuse angle. Usually you can only have one obtuse angle, so the rest would be acute.

An obtuse triangle has 1 obtuse angle and 2 different acute angles and they all add up to 180 degrees