# Does a obtuse angled isosceles triangle have congruent side?

All isosceles triangles must have two congruent sides otherwise it is not isosceles. Whether it is acute angled, right angled or obtuse angled is irrelevant.

### What type of triangle has an angle that measures 120 degrees and an angle that measures thirty degrees for kids?

It is an obtuse angled isosceles triangle. It is an obtuse angled isosceles triangle. It is an obtuse angled isosceles triangle. It is an obtuse angled isosceles triangle.

### What is an isosceles obtuse triangle?

An isosceles obtuse triangle is a triangle with 1 obtuse angle and only 2 congruent sides.

### What are the six kinds of triangle?

acute angled triangle,right angled triangle,obtuse angled triangle,isosceles triangle,equilateral triangle, scalene triangle

### A triangle with two congruent sides and an angle of 104 degrees is?

A triangle with two congruent sides is isosceles. A triangle with an angle of 104 degrees is obtuse. So you would have an obtuse isosceles triangle.

### 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… Read More

### What is the six kinds of triangle?

A scalene triangle, an equilateral triangle, an isosceles triangle and a right-angle triangle, acute-angled triangle, obtuse-angled triangle

### What is the angle sum of a obtuse isosceles triangle?

The angle sum of any triangle is 180 degrees. It does not matter whether it is equilateral, isosceles or scalene, nor whether it is acute angled, right angled or obtuse angled (or any permitted combination).

### What angles does a isoscles triangle have for example right angles or obtuse or acute?

Any of the above: you can have a right-angled isosceles (not isoscles!) triangle, or an obtuse-angled one or an acute angled-one.

### What type of triangle has an angle that measures 120 degrees?

An obtuse angled triangle. An obtuse angled triangle. An obtuse angled triangle. An obtuse angled triangle.

### What type of triangle have rational sides?

Any kind of triangle can have rational or irrational sides: acute angled, right angled or obtuse angled; equilateral, isosceles or scalene.

### What type of triangle has 100 degree angle and two 40 degree angles?

An obtuse angled isosceles triangle.

### What type of triangle has one side twice as long as the other side?

A right triangle. * * * * * Not necessarily. All that can be said is that is is not an equilateral triangle. It can be isosceles or scalene. It can be acute angled, right angled or obtuse angled.

### If a triangle is obtuse then is it isosceles?

An obtuse triangle is not necessarily isosceles, but it can be.

### What is an obtuse angled triangle?

An obtuse angled triangle is wider than a right angled triangle. It has 180 degree angles.

### How many vertices in a scalene triangle?

3 vertices in a triangle, whether it is equilateral, isosceles or scalene; acute angled, right or obtuse.

### What do the triangles look like and what are the names?

Equilateral triangle = All sides congruent Scalene triangle = No sides congruent Isosceles triangle = At LEAST two sides congruent Right triangle = Triangle with one right angle Obtuse triangle = Triangle with ONE obtuse angle Acute triangle = Triangle with ALL acute angles

### Can an obtuse triangle have congruent sides?

Yes if it is in the form of an isosceles triangle with the other 2 acute angles being equal

### Which triangle has two acute angles and one obtuse angle?

If you are classifying triangles by their angles, an obtuse triangle has one obtuse angle and two acute angles. A triangle can have at most one obtuse angle. If the two acute angles are congruent, the triangle would also be isosceles.

### What are the names of the triangles and how can you tell?

right triangle forms a 90 degree angle scalene triangle has no congruent sides isosceles triangle has at least 2 congruent sides equilateral triangle has 3 congruent sides acute triangle all angles measure less than 90 degrees and the obtuse triangle contains 1 obtuse angles.

### How do you name a triangle by its angles than its sides?

An acute angled triangle, right angled triangle or obtuse angled triangle.

### Classification of triangle?

Classification of triangles according to sides: -Scalene Triangle - a triangle with no 2 congruent sides. -Isosceles Triangle - a triangle with at least 2 congruent sides. -Equilateral Triangle - a triangle with 3 congruent sides. Classification of triangles according to angles: -acute triangle - a triangle with 3 acute angles. -right triangle - a triangle with one right angle. -equiangular triangle - a triangle with 3 congruent angles. -obtuse triangle - a triangle with… Read More

### Does a triangle have 3 obtuse angles?

cannot because a triangle has to have 180 degrees i.e. obtuse angled triangle has one obtuse angle acute angled triangle has three acute angles

### What is the differences between an isoceles triangle and an obtuse triangle?

-- An isosceles triangle can also be an obtuse triangle but it doesn't have to be. -- An obtuse triangle can also be an isosceles triangle but it doesn't have to be. So there's no consistent diferences betwen them.

### Can an obtuse isosceles triangle has two congruent sides and two obtuse angles?

No the answer is no people think about it a triangles sides all have to sum up to be 180 degrees.

### A scalene triangle can also be an what triangle?

a scalene can be a right-angled triangle or a obtuse angled triangle or a acute angled triangle depending on the angles of the triangle.

### Classify the triangle by its angles and by its sides?

All angles equal = all sides equal = equilateral. Two angles equal = two sides equal = isosceles. All angles different = all sides different = scalene. An isosceles or scalene triangle may be right-angled or obtuse-angled if one of its angles is a right angle or obtuse angle (respectively).

### What is a triangle that has has 1 obtuse?

It can be an isosceles triangle or a scalene triangle if it has 1 obtuse angle

### Does obtuse triangle have any angles congruent?

An obtuse triangle must have two acute angles and these can be congruent.

### When is the orthocenter inside on or outside of the triangle?

Inside: acute angled triangleOn: right angled triangle Outside: obtuse angled triangle.

### Does an obtuse triangle always have 3 congruent sides?

An obtuse triangle does not always have three congruent sides. An obtuse triangle can be any form that always has three angles.

### Does an obtuse triangle have to be scalene?

No. An obtuse triangle can be isosceles. It just can't be a right or equilateral triangle.

### 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.

### Can an obstuse triangle also be isosceles?

yes because the two sides and two base angles can still be congruent even if the vertex is obtuse

### Are Isosceles triangles right obtuse and acute?

yes a isosceles triangle has a right,obtuse and acute angle.

### Do all triangles have 3 obtuse angles?

no, a triangle can only have 1 obtuse angle at a time. this type of a triangle is called obtuse angled triangle.

### Does the altitude of a triangle fall outside the triangle?

In an obtuse angled triangle, two of them will.

### In which type of triangle does the orthocenter of the triangle fall outside the triangle?

An obtuse angled triangle.

### What is a triangle with an obtuse angle called?

There are five different types of triangles named after their angles. Right triangle, Acute triangle, Isosceles Triangle ,equilateral triangle, and obtuse triangle. The Obtuse Triangle is the triangle with an obtuse angle.

### How many obtuse angles could an isosceles triangle have?

An Isosceles Triangle is a triangle with all angles less than 90o So there are no obtuse angles (between 90o to 180o).