If you mean a Quad which touches the circumference at all 4 points, then... # All interior angles add to 360' #Opposite angles add to 180' #The Quad is then referred to as a 'Cyclic Quadrilateral'
A quadrilateral has four sides. A circle does not have four sides. Therefore, a circle is not a quadrilateral.
no because it has an infinate number of sides a quadrilateral has exactly 4
no
Concentric Circles?
supplementary
No. You can have a very "thin" quadrilateral that is completely in the top half of the circumscribing circle. Then the centre of the circle will be below and OUSIDE the quadrilateral. The diagonals of the quadrialteral will be INSIDE the quadrilateral while they are within the circle and so cannot pass through the centre.
A cyclic quadrilateral is one that has concyclic vertices (its corners all fit on the same circle) and, for a simple cyclic quadrilateral, opposite angles are supplementary.
No, the circle is inscribed in the quadrilateral.
If you mean can a circle always be drawn round a quadrilateral so that the quadrilateral is enclosed within the circle then yes as long as the diameter of the circle is large enough. If you mean can a circle always be drawn around a quadrilateral so that it passes through all vertices then only if the opposite angles of the quadrilateral add up to 180o - such quadrilaterals are called cyclic quadrilaterals.
It is an inscribed quadrilateral or cyclic quadrilateral.
No, only in certain, limited circumstances. Eg where a quadrilateral is (can be) circumscribed within a circle.
A quadrilateral has four sides. A circle does not have four sides. Therefore, a circle is not a quadrilateral.
A quadrilateral is inscribed in a circle it means all the vertices of quadrilateral are touching the circle. therefore it is a cyclic quadrilateral and sum of the opposite angles in cyclic quadrilateral is supplementary. suppose if one angle is A then another will be 180 degree - angle A.
The opposite angles of a quadrilateral inscribed in a circle have a sum of 180 degrees.
There is no such thing.
you dont
cyclic