QUADRILATERAL (VIII)

1) The angles of a quadrilateral are 4x, 15x, 7x, 10x. Find the smallest and the largest angles of the quadrilateral.   40, 150

2) If angles A, B, C, D of a quadrilateral ABCD, taken in order, are in ratio 3:7:6:4 then find the angles.     54,136,108,72

3) If two angles of a quadrilateral are 40 and 110 and the other two are in the ratio 3:4, find these angles.    90,120

4) If the angles of a quadrilateral, taken in order, are in the ratio 1:2:3:4. Find the angles.       36, 72,108,144

5) Three angles of a quadrilateral are 75,90 and 75. Find the fourth angle.   120

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