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No, only one is and it is known as a 'right isosceles triangle'. By definition an isosceles triangle has two equal sides and two equal angles. If those two equal angles are 45o then the third angle must be 90o.

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Q: Are all isosceles triangles right triangles?
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Related questions

Are all right triangles isosceles triangles?

no


Are all right triangles an isosceles triangles?

Yes- but not all isosceles triangles are right triangles. Isosceles means that two sides are the same length, and two angles are the same.


Some equilateral triangles are not isosceles?

All isosceles triangles are not equilateral triangles


How many degrees does a right isosceles have?

The right isosceles triangle has 180 degrees as all triangles do


Are some isosceles triangles equilateral triangles?

All isosceles triangles are not equilateral triangles


Does an isosceles triangle have a right angle in it?

An isosceles triangle may have a right angle, but a right angle is not a requirement of all isosceles triangles.


How many right angles does a isosceles right triangle have?

It can only have a maximum of one- and that is only if it is a right-angled isosceles triangle. ----------------------------------------------------- Yes not all isosceles triangles are right angle triangles - this is a special case.


How many right angles does a isosceles triangle have?

It can only have a maximum of one- and that is only if it is a right-angled isosceles triangle. ----------------------------------------------------- Yes not all isosceles triangles are right angle triangles - this is a special case.


What is math tribond to isosceles equilateral right?

they are all triangles


What are the differences of isosceles right triangles and 30-60-90 right triangles?

isosceles are 45-45-90


Are some right triangles are isosceles triangles?

Yes.


Are all 30-60-90 triangles isosceles?

No because 30-60-90 triangles are right angle triangles