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# What polygon has at least one obtuse angle?

Updated: 4/28/2022 Wiki User

6y ago

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

6y ago   IRENE LIN

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Q: What polygon has at least one obtuse angle?
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Still have questions?  Related questions

### Does a dodecagon have obtuse angles?

Yes. Any polygon with more than four sides MUST have at least one obtuse angle.

### What 3 sided polygon has one obtuse angle?

An obtuse triangle.

### What polygon doesn't have at least one interior angle that is right or obtuse?

The answer to this would be any acute polygon, such as an equilateral triangle. The definition of acute polygons is that no angle in the polygon is greater than or equal to 90 degrees.

### What is the generalization for a obtuse triangle quadrilateral and pentagon?

Not sure what the question means. A triangle or quadrilateral may but need not contain an obtuse angle. A pentagon or any polygon with more sides must contain at least one obtuse angle.

obtuse triange

### What is a figure that only has one set of parallel lines no perpendicular lines and at least one acute angle and the one obtuse angle?

A polygon with four or more sides can meet all of the requirements.

### Does every triangle have at least one obtuse angle?

-- 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 .

### Can a trapezoid have one obtuse angle?

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).

### What triangle has at least one obtuse angle?

-- 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.

### Does a trapezoid always have an obtuse angle?

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

### What shape has 6 obtuse angles?

A hexagon has six angles. A regular hexagon has six angles and each one is equal in measure to 120 degrees. 120 degrees is an obtuse angle. Any regular polygon with at least 6 sides has at least 6 obtuse angles.

### What has at least one obtuse angle?

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