Yes, an isosceles trapezoid is symmetrical.
A quadrilateral may have all 4 angles different if it is not a square, rectangle, rhombus, rhomboid, rectangular trapezoid, isosceles trapezoid, or parallellogram.
it depends general: quadrilateral, polygon only some: trapezoid, parallelogram, rhombus, square, isosceles trapezoid, etc. (i'm pretty sure there's more)
If you extend the two legs of an isosceles trapezoid until they intersect, you get an isosceles triangle.
No. It can be but need not be.
rectangle, rhombus, parallelogram, trapezoid, isosceles trapezoid, kite ... etc
rhombus, parallelogram and an isosceles trapezoid
No, not every trapezoid is an isosceles trapezoid.
An isosceles trapezoid
Yes, an isosceles trapezoid is symmetrical.
how is an isoscelels trapezoid related to a isosceles triangle
A quadrilateral may have all 4 angles different if it is not a square, rectangle, rhombus, rhomboid, rectangular trapezoid, isosceles trapezoid, or parallellogram.
In an isosceles triangle and an isosceles trapezoid, both base angles are congruent
The diagonals of an isosceles trapezoid are equal in lengths
If the two sides which are not parallel have equal lengths, then the trapezoid is called an isosceles trapezoid (standard trapezoid has unequal sides). The base angles in an isosceles trapezoid are equal in measurement, also I know that a trapezoid with two nonparallel sides the same length is called an isosceles trapezoid.
it depends general: quadrilateral, polygon only some: trapezoid, parallelogram, rhombus, square, isosceles trapezoid, etc. (i'm pretty sure there's more)
If you extend the two legs of an isosceles trapezoid until they intersect, you get an isosceles triangle.