If a parallelogram is inscribed in a circle, then it must be a? A. Triangle B.rhombus C. Rectangle D. Trapezoid

If a parallelogram is inscribed in a circle, then it must be a Rectangle
Any quadrilateral in which opposites sides are parallel is called a parallelogram.
Any 2 dimensional figure bounded by 3 sides and sum of all the angles is 180° is called a triangle.
A parallelogram with four equal sides and sometimes one with no right angles is called a rhombus.
A rectangle is a four sided quadrilateral, having all the internal angles equal to 90 degrees and opposite sides are equal.
A trapezoid is a quadrilateral with one pair of opposite sides parallel.
This follows the characteristics features of a circle.
So the required parallelogram will be a rectangle.
Option C is correct.
So, options A , B, D are incorrect.
Find out more details on "Parallelogram" here: https://brainly.com/question/3050890
#SPJ2