There is no such thing as an isosceles rectangle.
Sides.
Isosceles.
Isosceles
Another name is its correct name: an isosceles triangle.
There is no such thing as an isosceles rectangle.
Isosceles mean having two sides of equal length.
It could be an isosceles triangle, an isosceles trapezium, or miscellaneous polygons with no special name.
The third angle of an isosceles triangle doesn't have a name.
The two equal length sides of an isosceles triangle are the legs.
Sides.
isosceles
An isosceles triangle.
equilateral
Isosceles.
Isosceles
an isosceles triangle