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Yes, it is true that an isosceles triangle can be acute or obtuse. As long as a triangle has two equal angles and two equal sides, it is isosceles. That situation can occur in both acute (all angles less than 900) and obtuse (one angle more than 900) triangles.
Examples are a triangle with the angles being 75-75-30 degrees (acute) and one having angles of 120-30-30 (obtuse). Of course the sides of the angles that are equal would also be equal, so both examples are of isosceles triangles.
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Is it true that isosceles triangles may be obtuse or acute but never right?
No, it is not true.
Is it true that an obtuse triangle has two obtuse angles and one acute angle?
No
Can an Isosceles triangles may be obtuse or acute but never right?
Not true. A triangle with angles of 90, 45 and 45 is a right angled isosceles triangle. If you take a square piece of paper and fold it in half - from corner to corner - you will get this shape.
Does obtuse triangle have any angles congruent?
An obtuse triangle must have two acute angles and these can be congruent.
Is it true that a obtuse triangle has a greater area than any acute triangle?
Not at all.
Isosceles triangles can be acute or obtuse true or false?
true
Is it true that isosceles triangles may be obtuse or acute but never right?
No, it is not true.
Is it true that an obtuse triangle has two obtuse angles and one acute angle?
No
Is it true that an obtuse triangle can have a one acute triangle?
I assume that the second use of the word "triangle" in the question should be angle. An obtuse triangle must have two acute angles.
Can an Isosceles triangles may be obtuse or acute but never right?
Not true. A triangle with angles of 90, 45 and 45 is a right angled isosceles triangle. If you take a square piece of paper and fold it in half - from corner to corner - you will get this shape.
Does obtuse triangle have any angles congruent?
An obtuse triangle must have two acute angles and these can be congruent.
Is it true that a obtuse triangle has a greater area than any acute triangle?
Not at all.
What statement is always true about an obtuse triangle?
An obtuse triangle has 1 obtuse angle and 2 acute angles which add up to 180 degrees.
Which triangle is not an isosceles triangle?
An obtuse triangle or a right angle triangle. An equilateral is definitely an isoceles triangle * * * * * Not true. An obtuse or right angled triangles can be isosceles. It depends on the sizes of the two smaller angles. An isosceles triangle has two equal angles so a triangle with angles of size [A, (180-A)/2, (180-A)/2] degrees where 90 < A < 180 degrees would be an obtuse angled isosceles triangle. A triangle with angles of size (90, 45, 45) degrees is a right angled isosceles triangle.
Is a triangle a figure formed by three segments connecting three noncollinear points?
This is a true statement that defines a triangle in geometry. However, there are many different types of triangles, such as obtuse, acute, scalene, right, equilateral, and isosceles triangles.
A triangle with one obtuse angle must also have two acute angles?
True
What statement sometimes true about the relationship between acute triangles and isosceles triangle?
The two acute angles are always equal.
