Q: What triangle has at least one obtuse angle?

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None. An acute triangle is one in which all angles are acute. An obtuse triangle is one in which one of the angles is obtuse. A right angled triangle is one in which one angle is a right angle (90o)

obtuse triangle

A triangle with one angle over 90 degrees is an obtuse triangle.

An Obtuse Triangle

An obtuse triangle

Related questions

-- 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 .

obtuse triangle

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

A triangle containing an obtuse angle is an obtuse triangle.

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

If one angle is a right angle, it is a right triangle. If one angle is an obtuse angle, it is an obtuse triangle. If there are no right nor obtuse angle then it is an acute triangle.

an Obtuse triangle

An obtuse triangle

An obtuse triangle.

Obtuse Triangle- An obtuse triangle has one angle that is bigger than 90 degrees (Obtuse angle). The following is an obtuse triangle. ! Hope it helped:')

An obtuse triangle.

an obtuse triangle