no
That is the definition of the incenter; it is the center of the inscribed circle.
Yes. The corners must be right angles for it to be inscribed on the circle.
not always, since sometimes kites may have a pair of opposite angles that are not supplementary. Special types of kites can be inscribed.
opposite angles are supplementary
If you want to, you can always draw a circle around an isosceles trapezoid and the radius can be half the base of the trapezoid.
Yes, always.
no
The area of a trapezium (trapezoid) is the product of: A: the perpendicular distance between the parallel sides b: half the sum of the lengths of the other two sides. The inscribed circle is irrelevant.
if a parallelogram is inscribed in a circle it is always a rectangle...............
That is the definition of the incenter; it is the center of the inscribed circle.
Yes. The corners must be right angles for it to be inscribed on the circle.
yes
yes.
Yes.
Yes all inscribed angles in a circle have their vertex on the circumference of the circle. Central angles have their vertex at the center of the circle.
not always, since sometimes kites may have a pair of opposite angles that are not supplementary. Special types of kites can be inscribed.