A quadrilateral can be inscribed in a circle if and only if the opposite angles are

True or False? A circle could be circumscribed about the quadrilateral below.

Identify these statements as "Always, Sometimes, or Never"A circle can be inscribed in any regular polygon.A circle can be inscribed in an isosceles trapezoid.If a line segment is drawn from the center of any regular polygon to any of its vertices, the segment is a radius of the inscribed circle.A circle can be circumscribed about an equilateral triangle.Any triangle, regular or not, can be inscribed in a circle.If two circles are concentric, then their radii are congruent.If a circle is inscribed in a square, then the diagonal of the square contains a diameter of the circle.If a regular polygon is inscribed in a circle, then all diagonals of the polygon pass through the center of the circle.Circles can be inscribed inside of quadrilaterals.A parallelogram can be inscribed inside of a circle.

A rectangle is a quadrilateral with four right angles.A.TrueB.False

Classify the Quadrilateral correctly.

A quadrilateral whose diagonals are equal and bisect each other at right angles is called a _______ .