a non-right angled triangle.
Acute angle, right angle and obtuse angle
Right Angle, Acute Angle, and Obtuse Angle
A triangle is not an angle. A triangle is made of three angles. -- All three of them can be acute, but they don't need to be. -- One of them can be obtuse but doesn't need to be. -- One of them can be a right angle but doesn't need to be. -- If any angle in the triangle is right or obtuse, then the other two need to be acute.
acute, obtuse, & right angle
If it has an angle over 90 degrees, it's obtuse. If it has an angle exactly 90 degrees, it's right. Otherwise, it has three acute angles, and is acute.
A kite can satisfy those criteria.
A cuboid is a three dimensional solid: it is not an angle of any sort.
A three sided shape is a triangle but the given angles are incorrect because a triangle can't possibly have a right angle and an obtuse angle because its 3 interior angles must add up to 180 degrees.
A triangle can have one obtuse angle and two acute angles. The sum of all three angles must equal 180 degrees.
Having three unequal sides of a triangle is called scalene an angle can be acute angle (<900), right angle (900) and obtuse angle(>900)
you cannot make a regular shape which has 3 right angles only, you will always end up with 4 right angles