If a triangle is an isosceles triangle as well as being a right-angled triangle, the size of the two angles (that are not right angles) are 45 degrees.
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.
An isosceles right angled triangle
Any of the above: you can have a right-angled isosceles (not isoscles!) triangle, or an obtuse-angled one or an acute angled-one.
a right angled triangle with the remaining angles both being 45 degrees will be a rightangled triangle and an isosceles triangle.
If a triangle is an isosceles triangle as well as being a right-angled triangle, the size of the two angles (that are not right angles) are 45 degrees.
Isosceles Triangle * * * * * In fact it is a right angled 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.
An isosceles right angled triangle
Yes, when it has a 90 degree and two 45 degree angles it is an isosceles right angled triangle.
Any of the above: you can have a right-angled isosceles (not isoscles!) triangle, or an obtuse-angled one or an acute angled-one.
a right angled triangle with the remaining angles both being 45 degrees will be a rightangled triangle and an isosceles triangle.
Yes, it would then be an isosceles right angled triangle.
When it is an isosceles right angled triangle: with angles that are 90-45-45.
Yes. A triangle with angles of 90-45-45 degrees.
A triangle with a 90 degree angle and two 45 degree angles.
right triangle * * * * * Or, to be more precise, a right-angled isosceles triangle.