An isosceles triangle has a base and two equal sides.
The two equal sides whan added together must exceed the length of the base.
So if the base is 10 units the two equal sides must be above 5 units each.
Examples are: 10, 6, 6 or 5, 7, 7, or 2, 4, 4 .... etc
========================================================
The base could be infinitely long or infinitely short, and the sides could also be infinitely long or short, provided that the figure was still a triangle. Therefore there are, in theory, an infinite number of measures for both the base and the sides.
The angles of a triangle, however, must always add up to 180 degrees.
90° . That's true of any triangle. Doesn't have to be isosceles.
An isosceles right angled triangle
yes
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.
It is possible if neither of the angles in the triangle measures to 60 degrees
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.
90° . That's true of any triangle. Doesn't have to be isosceles.
An isosceles triangle.
It is possible for an isosceles triangle to be an acute triangle because, in an acute triangle all the angles have to be less than 90o.
Yes
they would be congruent triangles!
No.
An isosceles right angled triangle
yes
An isosceles triangle
A 45-45-90degree triangle is classified as an isosceles triangle.