Quadrilateral part 3

If the sides of a cyclic quadrilateral are 3,3,4,4, show that a circle be inscribed in it.

The sides of a quadrilateral are 3, 4, 5 and 6 cms. The sum of a pair of opposite angles is 120^0. Show that the area of the quadrilateral is 3sqrt(30) sq.cm.

The angles of a quadrilateral are in the ratio 3: 4: 5: 6 . Show that the quadrilateral is a trapezium.

The co-ordinates of the four vertices of quadrilateral are (-2,4),(-1,2), (1, 2) and (2, 4), taken in order. The equation of the line through the vertex (-1, 2) and dividing the quadrilateral in two equal parts is:

Three angles of a quadrilateral are in the ratio 4:6:3. If the fourth angle is 100^(@) find the three angles of the quadrilateral.

The angles of a quadrilateral are in the ratio 3\ :\ 5\ :\ 9\ :\ 13 . Find all the angles of the quadrilateral.

The angles of a quadrilateral are in the ratio 3:5:9: 13. Find all the angles of the quadrilateral.

The angles of a quadrilateral are in the ratio 3:5:9: 13. Find all the angles of the quadrilateral.

The angles of a quadrilateral are in the ratio 3:5: 9:13. Find all the angles of the quadrilateral.

Three angles of a quadrilateral are in the ratio 4:6:3. If the fourth angle is 100^@ , find the ther three angles of the quadrilateral.